History Characters / ClassroomOfTheElite

* TheRival:
** Seems to have a rivalry with Ryuen for supremacy.
** More directly in a rivalry with Ayanokouji, though an odd example because it is only because he wants her to be one and defeat him.

* [[Characters/ClassroomOfTheEliteClassD Class D]][[note]]Kiyotaka Ayanokoji, Suzune Horikita, Kikyo Kushida, Kei Karuizawa, Yosuke Hirata, Rokusuke Koenji, Ken Sudo, Kanji Ike, Haruki Yamauchi, Teruhiko "Keisei" Yukimura, Airi Sakura, Haruka Hasebe, Akito Miyake, Maya Sato, Chiaki Matsushita, Satsuki Shinohara, Mei-Yu Wang, Hideo Satamura, Ryotaro Hondo, Kayano Onodera, Kokoro Inogashira, Kyosuke Okitani, Nene Mori, Soshi Miyamoto, Wataru Ijuin, Tsubasa Nanase, Kazuomi Hosen[[/note]]('''Unmarked Year 1 Spoilers''')

* TheRival: Seems to have a rivalry with Sakayanagi for the supremacy of the school.

* MsFanservice: She wears a bikini in the PoolEpisode, showing her well-developed figure.

A loner in Honami Ichinose's Class C (formerly B) who only sticks with others to keep the image of everyone being friends.

* LeaveMeAlone: Despite being someone who would do anything she can to help anyone else, Honami is utterly terrible at receiving help herself. Regardless to how much she's suffering, she'll never ask for help, and will even reject offers of help from others. Unusually, she's not motivated by pride, but out of a desire to avoid being a bother to others. Kiyotaka becomes her main source of emotional support, largely by refusing her attempts are pushing him away.

A loner in Honami Ichinose's Class B who only sticks with others to keep the image of everyone being friends.

[[folder:Chairman]]
!!Chairman Sakayanagi
!!!'''Voiced by:''' Creator/MitsuruMiyamoto (Japanese)
[[quoteright:220:https://static.tvtropes.org/pmwiki/pub/images/chairman_sakayanagi_anime.png]]

The current chairman of the Advanced Nurturing High School. He is Arisu Sakayanagi's father.

* EveryoneCallsHimBarkeep: He's only known as "Chairman".
* GoodParents: From what little can be seen in his interactions with Arisu, he shows to be a good father to her in sharp contrast to Professor Ayanokouji's treatment and view of Kiyotaka.
* ReasonableAuthorityFigure: When Kiyotaka's father tries to force him to resign from the school, the Chairman tells Professor Ayanokouji that according to the rules of the school, Kiyotaka can't leave unless it is his own wish or that he is expelled. He also reveals that Kiyotaka was given admission to the school under his approval.
* UnnamedParent: Since he's Arisu's father, that makes Sakayanagi his surname. His given name is unknown.

[[folder:Tokinari Tsukishiro]]
!!Tokinari Tsukishiro
!!!'''Voiced by:''' Creator/RyotaTakeuchi (Japanese)
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/tsukishiro_anime.png]]

The acting director of the Advanced Nurturing High School after Chairman Sakayanagi's temporary suspension.

* AdaptationalBadass: [[{{Downplayed|Trope}} Somewhat]]. In the light novel, he intentionally trips Sakayanagi to gain an opening to corner Kiyotaka against the wall in a chokehold. In the anime, he manages to prevent Kiyotaka from catching Sakayanagi.
* AdaptationalLateAppearance: In the manga, he appeared in the first chapter of the 2nd Year arc.
* AlliterativeName: '''T'''okinari '''T'''sukishiro.
* TheBet: He promises to back out if Kiyotaka manages to figure out the identity of a freshman student sent from the White Room by the end of April. In other words, within a month from said student arriving at school.
* EyesAlwaysShut: He's always depicted with his eyes closed.
* FauxAffablyEvil: He puts on a friendly smile and speaks politely, but he's a loyal agent of the White Room who's not afraid to attack his students and cheat to get his way, even intercepting a command Ayanokoji sent Suzune in the chess test so she'd misplay and lose him his protection point.
* LastEpisodeNewCharacter: He made his first appearance in the third-to-last volume of the ''Year 1'' series and plays a bigger role in ''Year 2''.
* LastNameBasis: He's only ever referred to by his surname until [[spoiler:Volume 0]], which is Tokinari.
* TheMole: For Professor Ayanokōji, as he was sent to be an acting director in [=ANHS=] to expel Kiyotaka and [[spoiler:return him to the White Room.]]
* PickOnSomeoneYourOwnSize: [[spoiler:As a man working for Professor Ayanokōji, he serves as a major antagonist for Kiyotaka in ''Year 2'' to overcome to avoid getting expelled and returning to the White Room.]]
* StrongerThanTheyLook: He may look like a middle-aged man, but he's blazingly strong to the point that Kiyotaka, in the light novel, acknowledges his "superhuman strength" despite his physical appearance when getting pinned to the wall upon their first meeting.
* WouldHitAGirl: His EstablishingCharacterMoment involves tripping Sakayanagi by kicking her cane out of nowhere. In the anime, he goes further by successfully preventing Kiyotaka from catching her, thus causing Sakayangai to fall on the floor at full force.
* WouldHurtAChild: His very first appearance involves deliberately tripping Sakayanagi by kicking her cane, elbowing Kiyotaka with a hard blow, and putting the latter in a chokehold against the wall.

!Employees
[[folder:Yukitsu Kusuda]]
!!Yukitsu Kusuda
!!!'''Voiced by:''' Norihisa Mori (Japanese), Creator/DerickSnow (English)
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/yukitsu_kusuda_anime.png]]

A clerk working at [=SIVCAMERA=].

* AbhorrentAdmirer: Airi is disgusted out of her mind by Kusuda and his predatory behavior towards her.
* AdaptationalKarma: In both the light novels and manga, he was warned by Kiyotaka to never approach Airi again due to having evidence of his AttemptedRape. In the anime, he gets incarcerated instead.
* AdaptationalUgliness: While his looks were never described in the light novel, he's rather plain-looking at best for a 30-40-something-year-old man in the anime.
* EntitledToHaveYou: He deluded himself into thinking that the internet idol he was a fan of had enrolled at the school near the place he worked just for him, to the point he tries to rape her when his patience reaches a zenith.
* {{Ephebophile}}: He's an older man with an obsessive crush on the teenage Airi. He also seems to show interest in Kushida when meeting her for the first time.
* {{Gonk}}: He's not exactly good-looking in the anime, which only highlights his disgusting stalkerish crush on Airi.
* MythologyGag: His first name in the anime seems to be a nod to the store's name he works in from the manga; '''[=KusDA=]'''
* NamedByTheAdaptation: In the anime, his name is Yukitsu Kusuda.
* NoNameGiven: In both the light novels and the manga adaptation, he goes unnamed.
* StalkerWithACrush: For Airi. He tries to use her buying a camera as an excuse to get her address, but he was fortunately stopped by Kiyotaka. He then starts stalking her around the campus and attempts to rape her after cornering her in an alley.

!Other Characters
[[folder:Atsuomi Ayanokōji]]
!!Professor Atsuomi Ayanokōji
!!!'''Voiced by:''' Creator/YasunoriMasutani (Japanese), Creator/ChristopherSabat (English)
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/atsuomi_ayanokouji_anime.png]]

Kiyotaka's father.

* AbusiveParents: The abusive parent part kicks in when we learn not only did he place Kiyotaka in the White Room, but the man was also responsible for the facility's founding in the first place. It's made clear from Kiyotaka's interaction with his father in volume 7, that the man sees his son as only a tool, unable to make any choice apart from the ones ''he'' has decided. Even the first time he saw his baby son, he did not show any paternal feelings towards him. Even if he did view Kiyotaka as family, Atsuomi thinks he would have just ignored him to focus on his ambitions. As he later reveals, he'll do ''anything'' to get Kiyotaka back into the White Room, even if it means [[OffingTheOffspring murdering him]] in the process.
* AlliterativeName: '''A'''tsuomi '''A'''yanokouji.
* AmbitionIsEvil: His unrelenting ambition is described to be his greatest asset, and unfortunately, that includes treating his own son as a tool to further his own goals and using his political connections to severely punish those who go against him. Volume Zero also reveals that he's willing to committing various shady and morally ambiguous acts (i.e. pandering to underage girls, bribery, espionage activities for hostile organizations, gaining connections with the ''Yakuza'' and lesser gangs, resorting to violent means, etc.) in order to get where he is.
* AmicableExes: He and Mika used to date for a good while before the events of Volume 0, but broke things off amicably.
* BookDumb: Atsuomi's academic history is described to be below average and is mentioned that he never graduated from a high-ranking university. Volume Zero reveals that if it weren't for Naoe-sensei's support and acknowledgement of Atsuomi's ambition, the latter's low academic history wouldn't have allowed him to get far in politics.
* DarkAndTroubledPast: Volume Zero reveals that Atsuomi's past wasn't an idyllic one. He grew up extremely poor in the countryside where his home consisted of a ''shack'' maintained by the neighbors, was abandoned by his father to be RaisedByGrandparents, has a low academic history, average physical strength, a subpar working effort, and the obvious implication that nobody around him believes he would amount to anything in life. This ends up playing a role in his extreme ambition to climb the social ladder and later establish the White Room.
* ADayInTheLimelight: Volume Zero has Atsuomi being the main viewpoint character for a good chunk of the narration and his origins revealed.
* {{Determinator}}: His ambition coupled with an unrelenting indomitable fighting spirit to achieve his goals is what allowed him to become the man he is today and someone that Kiyotaka feared the most.
* DisappearedDad: On the giving and receiving ends. Volume Zero reveals that his own father left him in the custody of his paternal grandparents and Atsuomi himself has no love towards Kiyotaka other than to use the latter as a tool to further his own ambitions to climb the political world.
* DrivenByEnvy: While his ambition is often stated to be his only noteworthy trait, Volume 0 reveals that his envy for those who lived high in society compared to his own extremely poor background is another driving force that strengthens it.
* EvilVirtues: Despite the more [[AmbitionIsEvil unscrupulous sides of it]], Atsuomi's ambition and determination to rise above his former low status does ring positive to many people of poor and challenging backgrounds (both InUniverse and out), never mind the proof of his worth to those of higher social status. For all of Kiyotaka's fear of his father, there's a deep underlying respect for the man's capabilities and Chairman Sakayanagi even compliments Atsuomi's ambition by describing his ability to move ''the entire country of Japan'' at one point.
* FromNobodyToNightmare: As narrated by Atsuomi in Volume Zero, he was born extremely poor in the countryside, abandoned by his father and [[RaisedByGrandparents left in the custody of his grandparents]], had a poor academic history and wasted most of his youth doing menial things. It was only when his relentless ambition caught the attention of a well-known politician that Atsuomi rose the political ladder, created the White Room, and [[TheDreaded someone that]] ''[[TheDreaded Kiyotaka]]'' [[TheDreaded is immensely wary of]]. Chairman Sakayanagi even describes to his daughter that despite Atsuomi's subpar qualities, he, at one point, was able to move ''the entire country of Japan'' with his relentless ambition.
* HeartIsAnAwesomePower: It's often mentioned and confirmed in Volume 0 that he's a RidiculouslyAverageGuy, with his only worthy trait is his unrelenting ambition and determination. As the series shows, along with Kiyotaka's fear of him despite his own academic and athletic abilities surpassing him, it took him very ''far'' in life.
* LastNameBasis: His first name wasn't revealed until Volume 0.
* RidiculouslyAverageGuy: During a flashback in Volume 11, Chairman Sakayanagi describes Atsuomi to be a commoner, who has never graduated from a top university or even possessed outstanding athleticism. His wife is also the same, and none of their relatives show any signs of remarkable abilities and talents.
* TheUnfettered: According to both Kiyotaka and Atsuomi's own narration in Volume 0, there's ''nothing'' he's unwilling to do to seize power and achieve his own ambitions.
* VillainProtagonist: Of Volume Zero, where shows Atsuomi's origins and the circumstances that led to him developing the White Room.

[[folder:Matsuo]]
!!Matsuo

Kiyotaka's butler.

* CoolOldGuy: Downplayed. He's mentioned to be nearly 60 before the start of the series and is described to be a NiceGuy and devoted single father to his son.
* DotingParent: He's a very doting father to his only child, Eiichirō, and made many sacrifices to make sure he had a good life.
* DrivenToSuicide: He burnt himself to death in order prevent his son, Eiichirō, from being further socially punished by Atsuomi for his choice of helping Kiyotaka [[spoiler:escape the White Room.]]
* FriendToAllChildren: According to Kiyotaka, Matsuo was exceptionally good at taking care of people, and any child would've liked him. It's implied that Matsuo's parental instincts are what led to him being willing to send Kiyotaka away from Atsuomi despite knowing the consequences.
* TheGhost: He never made a physical appearance in the series and is only mentioned by Kiyotaka, Atsuomi, and [[spoiler:Tsubasa]].
* GlamorousSingleMother: Gender-Inverted. He started off as a single parent who managed to secure a comfortable living condition for himself and his son as a butler for the Ayanokouji family. However, this becomes inverted after Matsuo allowed and helped Kiyotaka to apply to the [=ANHS=] to escape his father's control, Matsuo was severely punished by getting fired and having his reputation ruined to bar him from ever finding work to sustain his family.
* GoodParents: He was a loving and devoted father to his son Eiichirō.
* HappilyMarried: To his late wife, who died giving birth to Eiichirō.
* HiredHelpAsFamily: He acted as a [[ParentalSubstitute father figure]] toward Kiyotaka while operating as his butler.
* LawOfInverseFertility: According to Kiyotaka, Matsuo married young, but couldn't conceive a child until he was ''over 40''.
* NoFullNameGiven: His given name is never revealed.
* NoGoodDeedGoesUnpunished: [[spoiler:His act of helping Kiyotaka escape the White Room causes Atsuomi to bring his wrath down on him and his family by using his political influence to not only irreparably ruin Matsuo's reputation after firing him and leaving him unable to find a job, but he also did the same to his son, Eiichirō, by chasing out of a prestige private high school the latter ''just'' got into and barred any other attempts to apply elsewhere. While it's implied that Matsuo was "aware" of the consequences, he may not foresee just ''how'' severe the punishment was given to him by [[TheUnfettered Atsuomi]].]]
* ParentalSubstitute: Implied to serve as this for Kiyotaka as a butler, in contrast to Atsuomi's own views and treatment towards him.
* PosthumousCharacter: He's first mentioned in the main story when Atsuomi informs Kiyotaka of his suicide.
* ScrewTheRulesImDoingWhatsRight: [[spoiler:While he knew that things wouldn't bore well for himself and his son if he were to go against Atsuomi, Matsuo still helped Kiyotaka to achieve freedom by applying for the Advanced Nurturing High School simply out of kindness and sympathy for the latter's well being. Also, it's likely that Matsuo really didn't think just ''how'' bad of a punishment Atsuomi would inflict on him.]]
* SenselessSacrifice: [[spoiler:To prevent Atsuomi from further social harm to his son in retribution for helping Kiyotaka escape the White Room, Matsuo begged Atsuomi to leave his son alone by [[DrivenToSuicide burning himself alive]] in exchange. While Atsuomi, at least, honors Matsuo's last wish, the latter's sacrifice becomes AllForNothing as Year 2, Volume 3 reveals that Eiichirō also took his own life not long after.]]
** What makes this worse, is that [[spoiler:Volume 0's ending reveals that Atsuomi ''planned'' for Matsuo to help his son get away from him. This makes Matsuo and his son's tragic fate set in stone in retrospect.]]
* SmallRoleBigImpact: He was the one who allowed Kiyotaka to escape the White Room and enter the Advanced Nurturing High School to escape Atsuomi's influence.
* UnwittingPawn: [[spoiler:It's later revealed at the end of Volume 0 that Matsuo's successful attempt to help Kiyotaka was pre-planned by Atsuomi to manipulate Kiyotaka's growth.]]

[[folder:Eiichirō Matsuo]]
!!Eiichirō Matsuo

Matsuo's son.

* AmbiguousSituation: Since we only hear second-hand accounts from [[spoiler:Atsuomi and Tsubasa]], it's unknown if Eiichirō ever blamed Kiyotaka for the tragedy that befell his father and himself.
* ChildhoodFriends: He was friends with [[spoiler:Tsubasa]] when they were kids.
* DaddysGirl: Gender-inverted. He's very close to his father and is regarded as Matsuo's pride and joy.
* DespairEventHorizon: [[spoiler:Sadly, losing his father to a terrible suicide after having his future ruined by Atsuomi became too much for him to continue living.]]
* DetrimentalDetermination: Despite having his entry to the first prestigious private high school he applied to rejected by Atsuomi's political strings, he tries to bounce back by applying elsewhere. Unfortunately, Eiichirō's attempts are met with repeated failure due to the uphill battle against a man with a great amount of political power, denying him access to any success in life.
* DrivenToSuicide: [[spoiler:According to Tsubasa, he took his own life shortly after losing his father.]]
* TheDutifulSon: He's a dutiful son to his father by recognizing the sacrifices he made while growing up, leading to him studying diligently to achieve great things and repay his father's sacrifices.
* TheGhost: Like his father, Eiichirō is only mentioned.
* PlatonicLifePartners: With his ChildhoodFriend [[spoiler:Tsubasa]]. They share a very close bond without any romance between them.
* PosthumousCharacter: [[spoiler:Like his father, he's already dead when he's first mentioned in the main story.]]
* SmallRoleBigImpact: [[spoiler:His suicide greatly affected Tsubasa to the point that she attended the Advanced Nurturing Academy in ''Year 2'' to exact revenge on Kiyotaka by getting him expelled.]]
* StepfordSmiler: [[spoiler:Although he assures Tsubasa that things are still fine during Matsuo's funeral, it's clear that his father's suicide and his broken future Eiichirō greatly shattered whatever hope he has and killed himself not long after.]]
* TooGoodForThisSinfulEarth: From what little can be heard of him, Eiichirō was a NiceGuy whose very loyal and caring to his widower father and [[spoiler:childhood friend]]. [[spoiler:But due to his father being a political pawn to test Kiyotaka's growth, Eiichirō gets his future irrecoverably ruined as his father is forever brand to be incapable of finding work to financially sustain them, and any chance he gets at attending a prestigious high school is forever barred. Worse, losing his father in a horrific suicide by burning to death has broken whatever drive Eiichirō had left to continue living.]]

[[folder:Mika Ayanokōji]]
!!Mika Ayanokōji
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/mika_3.png]]

Kiyotaka's mother.

* AmbitionIsEvil: Similar to Atsuomi, Mika is also willing to commit unscrupulous acts to achieve her goals. At some point before her introduction in Volume 0, she calls in favor of Atsuomi to get rid of one of her co-workers to attain the #1 ranking girl in the cabaret business.
* AmicableExes: She and Atsuomi used to date for a good while before the events of Volume 0, but broke things off amicably.
* BookDumb: Similar to Atsuomi, she also never graduated from a high-ranking university, and Volume Zero revealed that she stopped her education after middle school and started working in the cabaret business.
* ChekhovsGunman: She's only mentioned by Chairman Sakayanagi in a flashback during Volume 11. It wasn't until Volume 0 that Mika made her first, and possibly only, physical appearance.
* ChosenConceptionPartner: In Volume Zero, it's revealed that Mika only married Atsuomi because of money, at the latter's offering, and the fact that he needed to sire a child for the White Room.
* TheFaceless: The only illustration of her in the light novel doesn't show her face.
* FemmeFatale: As part of her job in her cabaret business, Mika would often date and sleep with many men of high-ranking political and/or financial positions. The other part of her job also involves performing assassinations on political enemies.
* HatesBeingTouched: Despite her job in the cabaret business and willingness to date and sleep with certain men, she (understandably) really hates "pricks" who touch her without consent.
* InformedAttractiveness: She's described to be a beautiful woman, enough to be considered the 2nd ranking girl in the cabaret business until she called in favor of Atsuomi to get rid of her co-worker. It's also justified since her face is never shown in the illustrations.
* MissingMom: She remains seen throughout the series and her son doesn't seem to even know her. Turns out that soon after Kiyotaka's birth, Mika and Atsuomi divorced and she left to fulfill a mission. At the very least, Atsuomi allowed her to name their child Kiyotaka after one of the guys she's dated.
* NoFullNameGiven: She only goes by her given name, and later took up Atsuomi's surname in their temporary marriage.
* OnlyInItForTheMoney: She only gave birth to Kiyotaka to get the money for doing so.
* RidiculouslyAverageGuy: Gender-inverted. Like Atsuomi, she's also described to be a commoner, who has never graduated from a top university or even possessed outstanding athleticism, and none of their relatives show any signs of remarkable abilities and talents.
* WalkingSpoiler: It's hard to talk about Mika in any capacity without spoiling much of Kiyotaka's origins.

[[folder:Yuki]]
!!Yuki
[[quoteright:220:https://static.tvtropes.org/pmwiki/pub/images/yuki_54.png]]
[[quoteright:220: [-[[labelnote:Click here to see her as a teenager]]https://static.tvtropes.org/pmwiki/pub/images/yuki_teen.png[[/labelnote]]-]]]

A member of the White Room alongside Kiyotaka, and she serves as one of his {{Childhood Friend}}s.

* BrokenBird: Her time in the White Room had left her mentally traumatized to the point that ''years'' after leaving the facility, her father states that she would only be able to listen to Kiyotaka.
* DoesNotLikeSpam: What led to her first conversation with Kiyotaka and Shiro in the White Room was expressing her dislike of carrots during lunch period.
* EarlyBirdCameo: She makes a very early appearance in the anime during Kiyotaka's flashback ''way'' before her official debut in Volume 0.
* FirstPeriodPanic: She doesn't notice it due to panicking about having to leave the White Room, but the stress from the curriculum causes Yuki to have her first period prematurely.
* NoFullNameGiven: {{Justified|Trope}}. Part of the White Room's curriculum involves the students only going by their given name.
* OneSteveLimit: {{Averted|Trope}}. She shares her first name with Yuki Himeno from Ichinose's class.
* PleaseDontLeaveMe: She tearfully begs Kiyotaka to not leave her side when he coldly rejects any attempt to reconnect upon reuniting with her again.

[[folder:Shiro]]
!!Shiro
[[quoteright:120:https://static.tvtropes.org/pmwiki/pub/images/shiro_24.png]]

A member of the White Room alongside Kiyotaka, and he serves as one of his {{Childhood Friend}}s.

* AlwaysSecondBest: Played with. He's the second-best student behind Kiyotaka in the Fourth Generation of the White Room, but Shiro chooses to not go further in the curriculum due to his secret desire [[IJustWantToBeFree to be free]].
* ButNowIMustGo: Unlike the other students of the White Room, Shiro was the first one to leave the facility by his own choice due to his desire to see the outside world. After the 4th Generation is down to just him and Kiyotaka, they have their last spar before Shiro tells his friend of his secret desire to leave the facility. Afterward, Kiyotaka narrates that that was the last time he ever saw Shiro.
* DoesNotLikeSpam: Similar to Yuki, Shiro also dislike carrots.
* IJustWantToBeFree: In their last spar, Shiro expresses his true desire to leave the White Room and see the outside world.
* NoFullNameGiven: {{Justified|Trope}}. Part of the White Room's curriculum involves the students only going by their given name.
* TheStoic: Similar to Kiyotaka, Shiro doesn't emote much thanks to the White Room's brutal curriculum. Though compared to Kiyotaka, Shiro was able to hold on to some semblance of his humanity to the point he chooses to leave the White Room on his own accord rather than being expelled.
* WalkingTheEarth: It's implied he went abroad from Japan after leaving the White Room.

* HotTeacher: Much like Chabashira, she's an attractive teacher. However, her appeal comes mostly from her cutesy appearance in her case.

[[folder:Atsuomi Ayanokouji]]
!!Professor Atsuomi Ayanokouji

[[folder:Mika Ayanokouji]]
!!Mika Ayanokouji

* AHouseDivided: Some classes are divided into separate factions based on who they prefer as their leader. Class A is initially split between Katsuragi's and Sakayanagi's factions before the latter grows in power following their class coming in third place and being stuck in an undesirable deal courtesy of Kohei's strategy in Uninhabited Island Special Test. Class C is ruled under Ryuen's tyrannical thumb, but Hiroya Tokitou eventually leads a faction against him. Even Class B full of TrueCompanions is eventually divided between those who support Ichinose thanks to her role as TheHeart of their class and those who believe she doesn't have the cutthroat personality needed to win and therefore support [[WellIntentionedExtremist Kanzaki]] instead.

* HopelessSuitor: He's said to be romantically interested in Shinohara, who ends up having RelationshipUpgrade with Ike.

* MsFanservice: She's shown in a bikini on one of the illustrations in Volume 3 of Year 2, exposing her well-developed figure.

[[folder:Kiyotaka Ayanokouji]]
!!Kiyotaka Ayanokouji
!!!'''Voiced by:''' Creator/ShoyaChiba (Japanese), Creator/JustinBriner (English)[[labelnote: Foreign [=VAs=]]]Creator/ArturoCastaneda (Latin American Spanish), Yoann Sover (French), Bastian Sierich (German), Lucas Almeida (Portuguese)[[/labelnote]]
[[quoteright:185:https://static.tvtropes.org/pmwiki/pub/images/kiyotaka_ayanokoji_anime.png]]

An inconspicuous student who is very poor at communicating with other people even if he wants to, thus he tends to isolate himself. His emotions are hard to read. He received "perfectly intermediate" scores on his entrance examination, since academic and athletic-wise, he is average.

* AdaptationalBadass: The end result of his CurbStompBattle against Ryuen's gang is the same in both light novel and anime but in the light novels, he admits through the narrative that he felt some pain from Albert and Ryuen's blows. Most of this is omitted in the anime where Ayanokouji's expression remains the same throughout the entire fight and shows little to no indication that any of their hits even remotely stagger him. The only piece of light novel dialogue that makes it to his thoughts in the anime is that he acknowledges Ryuen is largely self-taught with his own fighting style.
* AdaptationalComicRelief: In the manga adaptation, where his inner thoughts and emotions are more transparent, Kiyotaka shows plenty of external and colorful facial expressions in his interactions. This portrayal not only makes him "normal", but it also gives him a more whimsical feel.
* AdaptationalSeriousness: In the anime, Kiyotaka's stoic tendencies are exaggerated to the point where he's practically robotic, outwardly and inward. Since he rarely changes his FrozenFace, along with some of his inner thoughts being obscured, Kiyotaka lacks any of the comedic moments he had from the light novels and manga, and at the same time, makes the events where he does things in anger, such as his NoHoldsBarredBeatdown on Ryuen, more chilling.
* AffectionateNickname: He's called Kiyopon and Ayanon by Haruka.
* BadGuysDoTheDirtyWork: He undoubtedly does morally ambiguous deeds most of his friends wouldn't do, but people can, and do, benefit from his actions. Sure, his only goal is personal gain and maintaining his sense of freedom, but he still subconsciously helps other people more often than not. Many of his inner monologues highlight this contradictory nature.
* BerserkButton: Quite subtle considering his stoic nature, but he does not like it when people probe into his DarkAndTroubledPast, such as with Suzune, when she asks who he really is, as he tells her he will help her get to Class A but never ask him about his past with a darkened shadow over his eyes.
* BreakThemByTalking: He breaks Hirata by making him feel responsible for failing to come up with and carry out a plan to prevent the first expulsion in their class, unlike Class B. All so that he would start taking responsibility for his failures and grow out of his HeroicBSOD.
* BrilliantButLazy: Despite his insistence that he's just an average guy, he seems to be quite skilled and competent not just in academics, but also in martial arts and ''especially'' exploiting people. The lazy part gradually falls apart as circumstances slowly force him to be more proactive in class events.
* BrokenAce: Later parts of the light novels suggest he is more of this trope than legitimately suffering from mental disorders. The light novels make it clear he's not so much emotionless as much as he is naive and awkward when it comes to what 'normal' social interactions are all about. Couple this with his upbringing in the White Room and his utter lack of any real affection growing up, and you'd be hard-pressed to ''not'' act like a blank slate.
* BroodingBoyGentleGirl: He's the Brooding Boy to Kei's Gentle Girl.
* CallingParentsByTheirName: He never refers to Atsuomi Ayanokouji as his father, instead only referring to him as "that man".
* CelibateHero: He can notice when other girls are interested in him, but he doesn't return their feelings because they don't have any idea about [[ManipulativeBastard what]] [[NominalHero kind]] [[BadGuysDoTheDirtyWork of]] [[BrokenAce person]] he actually is. Later on, he personally turns down Maya's confession because [[WhatIsThisThingYouCallLove he genuinely doesn't understand romantic love at the time]]. It's finally {{subverted|trope}} when he confesses to Kei Karuizawa just before their 2nd year unrolls.
* CharacterExaggeration: In the light novels, he is socially awkward and can actually become emotional at times (though he himself does not think so) while mostly keeping a stoic-looking face. The later adaptations characterize him in two extremes, one where he acts exactly what he thinks he's capable of and the other of how everyone else sees him as.
** In the manga, Kiyotaka's more colorful personality is transparent, making him openly emotional in his interactions with others.
** In the anime, Kiyotaka's stoic behavior is exaggerated to the point where he's near-emotionless, both inside and out.
* CharacterizationMarchesOn: In the first three volumes, Kiyotaka's personality is notably colorful and it makes the reader think he's making the appropriate expressions to correspond, but later volumes make him more melancholic.
* CharlesAtlasSuperpower: Of the BadassNormal variant. It's clear from his encounter with Manabu early on that Kiyotaka is a ''lot'' more physically adept than he lets on. His upbringing under the White Room includes intensive physical training as much as education, which gives him the peak-human level of fitness.
** Just before the sports festival in volume 5 (season 2 episode 4), Kiyotaka asks Sudo what the average grip strength is for boys in their class, unaware the physically adept Sudo has no idea what the average number is. Kiyotaka casually adjusts his strength to around what Sudo told him, and he ends up being second highest just below Sudo himself. Then near the end of the sports festival, Kiyotaka challenges Manabu, who is a great example of this trope himself, into a one-on-one running competition. He nearly outruns him and only loses due to a student from an adjacent line falling down and getting in Kiyotaka's way.
** Volume 7 perhaps establishes just how adept Kiyotaka really is in terms of physique. Kiyotaka handily beats down Albert (who has a bigger build than him), Ibuki, Ishizaki, and Ryuen one after another without suffering any visible injuries, despite taking a few hits ''on purpose''.
** In volume 9, the new acting director Tsukishiro, who is actually one of his father's subordinates, implies Kiyotaka's physical abilities are comparable to trained adults.
* ChickMagnet: DoubleSubverted. Kiyotaka is considered a reasonably good-looking boy, but he is so passive and unassuming to the point most tend to overlook him. Early on, the only girl who wants his affection is [[ShrinkingViolet Sakura]] [[BecauseYouWereNiceToMe Airi]]. But as more of his capabilities are gradually revealed, such as almost outrunning the student council president Manabu during the school festival in Volume 5, many girls in the class begin to harbor crushes on him, including Maya Satou and Haruka Hasebe. On a more personal level, Kei Karuizawa gradually develops feelings for him as their relationship goes on, and much later, Honami Ichinose also begins to crush on him after he personally goes out of his way to help her.
* ClarkKentOutfit: His school uniform hides the fact that he has a noticeably muscular body, especially in comparison to his male classmates.
* ConditionedToAcceptHorror: Due to his upbringing in the White Room, nothing fazes him, barely reacting to things that would normally horrify and traumatize regular people. He doesn't even bat an eye when hearing about the suicides of his butler Matsuo as well as Matsuo's only son.
* ConvenientlySeated: He is seated in the back row right next to the window and also sits next to Suzune.
* CrouchingMoronHiddenBadass: When Kiyotaka stops Manabu from hitting Suzune, the president attempts to attack him instead. He manages to skillfully evade his attacks in a way that only someone who's spent time learning martial arts could have done. When he's asked if he took martial arts lessons, he simply claims that his only extracurriculars were piano lessons and calligraphy.
* CurbStompBattle: Dishes this once against Ryuen, Albert, Ibuki and Ishizaki at the end of volume 7. Then again toward Ibuki alone in volume 7.5.
* DeclarationOfProtection: Gives a rather epic one to Kei Karuizawa after saving her from Ryuen and company in LN volume 7:
--> "I'm the one who hurt you. I won't ask you to forgive me. But please just remember this one thing. If something like what happened today happens to you again, I will definitely save you."
* DefrostingIceKing: Despite his insistence otherwise, a lot of Kiyotaka's arc revolves around him legitimately starting to view his classmates as friends.
** Hints of this show up as early as the first volume of the light novels. For example, his inner monologue over why he wanted to help Suzune after the encounter with her brother.
--> "I was starting to sound worked up, or perhaps I was actually feeling worked up. Maybe because I'd started to, rather selfishly, consider her a friend. I didn't want Horikita to come to regret her decision."
** That having been said, his need to secure his freedom from potential threats such as his teacher Chabashira who tries to blackmail him to work toward Class A, his father's underlings in the school who work to get him expelled, all contribute to stunting his defrosting, to the point he basically ''refrosts'' at times. Time will tell whether this trope will ultimately be played straight or subverted.
* DeliberateUnderPerformance: He comes off as a very average person, but is hiding multiple talents on top of having rigged his scores in his entrance exams. The light novels go into more detail: Chabashira revealed that he not only solved a difficult problem - only solved by 3% of all students this year - he also included a complex formula and used it flawlessly while getting the wrong score on a question with a correct answer rate of 76%. This is notably the reason why Chabashira and Manabu notice him in the first place.
* DrearyHalfLiddedEyes: He's frequently drawn with half-lidded eyes, showing how detached he is from other people.
* EngineeredHeroics: When Ryuen subjects Kei to ColdBloodedTorture, Kiyotaka waits for her to be tortured for ''nearly an hour'' and then appears as though he arrived just in the nick of them to save her in order to keep her dependent on him.
* FallGuy: Kazuomi Housen tried to expel Kiyotaka by stabbing himself with a knife and framing him for the assault.
* GagPenis: In volume 8, it's revealed that he has a huge asset during a boy's bath when they compare to each other.
* HardWorkHardlyWorks: Subverted or averted depending on how one would look at it. By Kiyotaka's own admission, he has no distinctive characteristics, hobbies, or interests and makes no effort to stand out. While the 'not wanting to stand out' bit is true, the rest are lies given his immense physical, combative, intellectual, and mental prowess throughout the story. However, these "gifts" are said to have been earned during his DarkAndTroubledPast in the White Room. While one could say that Kiyotaka has the "talent" to be able to rise above and beyond the hellish curriculum, the narrative implies that what he's capable of isn't something unique to him and that anyone could be an "artificial genuis" with the correct guidance of the White Room.
* TheHeart: Oddly enough, he becomes this for his own group of friends, the Ayanokouji Group, formed after his big show in the sports festival in volume 6 (season 2 episode 6).
* HiddenDepths: Chabashira warns Suzune that of all the "oddball" students in class D, Kiyotaka is the strangest one of them all, and suggests she learn more about him before she can transfer to Class A. It takes talent to intentionally rig his grades to exactly 50% across the board.
* ItAmusedMe: Not exactly his main motivation, but this is Kiyotaka's reason for challenging Manabu into a one-on-one running competition near the end of sports festival in volume 5. He even notes to himself it's very different and much more entertaining compared to his experience running indifferently in White Room's facilities.
* ItsNotYouItsMyEnemies: Subverted. He briefly cuts contact with Kei under the pretense of protecting her from being targeted by Class C. Actually, he knew Ryuen would kidnap her anyway and deliberately waited until Kei was on verge of breaking from Ryuen's torture to rescue her at the last minute, all to make sure she would become completely dependent on him emotionally.
* JerkWithAHeartOfGold: PlayedWith. At first, he's essentially a selfish person who plays with others' feelings through manipulative acts of kindness. However, it gradually becomes clear that while Ayanokouji uses people for his own benefit, he also subconsciously helps them simply because he wants to.
* LikeFatherLikeSon: Just like his father, he treats people like tools to get to their own goals. And their hair is a bit spiky too.
* LivingEmotionalCrutch: {{Invoked|Trope}}. After making Kei into his pawn, Kiyotaka deliberately exploits her traumatic past with bullying and desire to be protected from harm to make her attach herself to him and completely depend on him to feel safe. After he pretends to cut ties with her and intentionally lets her be tortured by Ryuen, he comes to her rescue to convince her he'll always save her when she's in trouble.
* TheManBehindTheMan: Kiyotaka's modus operandi. He prefers to influence and lead his classmates from the sidelines rather than [[MagneticHero draws attention to himself]]. Due to this, he often has a habit of passing off his schemes as plans others thought of.
* ManipulativeBastard: He masterfully manipulates people around him to make them do his bidding and advance his own plans. For example, he manipulates Manabe and her friends in order to subject Kei to a NoHoldsBarredBeatdown in order to break her spirit and make her dependent on him.
* MistakenForRomance: Many of his classmates mistakenly think that he's Suzune's boyfriend, because he is the only guy and the person in general with whom she communicates. He does, in his own broken and awkward way, actually consider her a friend of sorts.
* TheMole: PlayedForLaughs in the PoolEpisode. He snitches Ike, Yamauchi, Yukimura, and Sudo's plan of planting a camera in the girls' locker room to Suzune, ensuring that she deletes the footage without their knowledge.
* MrFanservice: He gets to show off his well-built physique in the PoolEpisode as well as in the sauna scene of Mixed Training Camp.
* NiceGuy: Played with. Kiyotaka is tolerant, and willing to help friends; on the other hand, his life philosophy differs from most forms of AllLovingHero in the direction of moderate cynicism with heavy notes of SocialDarwinist.
* NominalHero: He's actually anything but heroic and cares only for his own personal freedom, helping others in a calculated move to earn their trust and then using them for his own ends. This changes as the series goes on as he makes more meaningful personal relationships, but very, very slowly, not helped by the fact that circumstances such as the new acting director of the school conspiring to expel him unfairly with a number of invisible enforcers, which then force him to act more proactively and extremely to maintain his goal.
* NoSocialSkills: This goes [[DownplayedTrope back and forth]] as he is fairly good at reading the mood of others, but it absolutely terrible at [[ThatMakesMeFeelAngry expressing his own emotions]].
* ObfuscatingStupidity: His attempts to pass himself off as a RidiculouslyAverageGuy don't always work. In fact, it's implied he actually purposefully left holes in his facade for truly perceptive people to find.
* OddFriendship: With the student council president Manabu, Suzune's older brother. Despite their first encounter involving violence, Manabu is intrigued by Kiyotaka's hidden talents and treats him with considerably more respect than anyone else, especially compared to [[AloofBigBrother his treatment of Suzune]]. Notably, Manabu offers Kiyotaka a position in the student council, an offer which he rarely ever extends even to 2nd and 3rd-year students. On Kiyotaka's part, he respects Manabu as a legitimate senior and later on, expresses willingness to form a give-and-take relationship with him after he steps down from the student council. When Manabu graduates in volume 11.5, Kiyotaka goes out of his way to speak with him one last time to share thoughts and experiences in a true Senpai-Kohai fashion, noting to himself he will remember his advice for all his life in this school.
* OnlyFriend:
** Kiyotaka is the one person with whom Suzune communicates, although she still won't call him a friend. It's {{invoked|trope}}, as Suzune deliberately isolates herself from other people.
** Later on, he hangs out with Hiyori Shiina at the library since she doesn't have anyone else to discuss the books she likes with.
* PerpetualFrowner: In the anime, he's always wearing a constant frown with DrearyHalfLiddedEyes (compared to the light novels and manga, where he does occasionally have emotional outbursts), making it practically impossible for the other characters to guess what he's thinking.
* PhotographicMemory: Kiyotaka remembers everything he has done in his life ''since age 0'', a fact that stuns the White Room researchers.
* PrettyBoy: He's a more manly variant, but definitely good-looking. Kushida notes he is ranked 5th in their class in this department.
* RaisedInALab: He was raised from birth in the White Room, a specific facility ''designed'' to educate with TrainingFromHell.
* RelationshipUpgrade: After months of considering the matter, and out of his desire to learn about love, Kiyotaka privately confesses his intent to go out with Kei at the end of volume 11.5 or episode 13 of season 3, which she accepts. They plan to keep it a secret from others, though.
* RidiculouslyAverageGuy: By his own admission, Kiyotaka has no distinctive characteristics, hobbies, or interests and makes no effort to stand out. Too bad it's all a lie, minus the 'not wanting to stand out' bit. Kiyotaka actually likes reading, as evidenced throughout his monologues and his ability to quote famous authors in light novels.
* SavvyGuyEnergeticGirl: Kiyotaka's the Savvy Guy to Karuizawa's Energetic Girl.
* SecretlySelfish: Despite his seemingly [[PetTheDog uncharacteristic altruistic actions]], in actuality the only thing he actually cares about is securing his own freedom. He has no qualms about [[UnwittingPawn using his classmates as pawns in his schemes]] to do so.
* SecretRelationship: After eventually asking Kei to be his girlfriend at the end of Year 1, they keep their relationship a secret for a while.
* SmartPeoplePlayChess: Being good at chess to the point of being superior to Arisu Sakayanagi for whom chess is an IconicItem; is only one of many ways the series demonstrates Kiyotaka Ayanokoji's abilities.
* SocialDarwinist: He is ready to help the weak or those who are in trouble, though only for personal gain, but he also believes that equality does not exist and is impossible in principle.
* SociopathicHero: It's revealed later on the face he puts on in front of everybody in the cast is pretty much a mask; truthfully, he cares little for any of his friends and sees them as tools to use to further his own goals. Or at least, that's what he tells himself in the light novels, as his inner monologues suggest it's not that simple. There's a lot of internal zig-zagging even in his head.
* SoleSurvivor: In the White Room, Kiyotaka came from the facility's 4th generation, which was so extreme that he's hailed by White Room staff as the 'sole graduate of the bloody 4th generation'.
* SoullessBedroom: Kiyotaka's bedroom only contains possessions supplied by the academy, hinting at his borderline emotionless and sociopathic nature. His classmates comment on how clean and empty his room is when they invite themselves over.
* StockLightNovelEveryman: Revealed to be a {{deconstruct|edCharacterArchetype}}ion in the final episode of Season 1 (epilogue of volume 3). He has multiple hidden talents because he was trained in childhood to be the best at everything, to the point he only cares about winning. He gains the attraction of women through mostly calculated moves to earn their trust and make them easier for him to manipulate. He goes out of his way to help many people in trouble, but he only wants to protect himself and will only help people if it advances said goal.
* TheStoic: He hardly reacts to anything in the anime. Downplayed in the light novels and manga, where he can and does react to things... albeit not as much, or as normally, as most people would.
* UnscrupulousHero: Kiyotaka intentionally tries to maintain [[NiceGuy amicable terms]] with his classmates and is capable of reading social cues. Despite this, his true motive is only to maintain his current lifestyle and not be sent back to the facility where he was raised. Deep down, he only views most of his classmates as tools, and the few people he is close to can be best classified as either 'people whom he does not want to make tools out of' or 'people who are too useful to let go'.
* WalkingSpoiler: It's hard to talk about him without mentioning that he's way more than just a RidiculouslyAverageGuy he first appears as. Or that he's been RaisedInALab for that matter.
* WhatIsThisThingYouCallLove: His monologue in volume 7.5 is this when he was preparing for his Christmas date with Maya Satou. He ends up thinking about Kei when trying to figure it out.
* WhenHeSmiles: Due to his ever-lasting poker face, the incredibly rare moments when he actually smiles are all the more endearing. He himself realizes he's only ever smiled around Suzune.
* WorthyOpponent: Notable in that he actually wants to have one because he wants to defeat his father by having the man's greatest creation, himself, be defeated. But so far, the only individuals whose abilities are sufficient for Kiyotaka to acknowledge are scarce; as of volume 11, Arisu is currently the only one whom he actually considers this.

[[folder:Suzune Horikita]]
!!Suzune Horikita
!!!'''Voiced by:''' Creator/AkariKitou (Japanese), Creator/FeleciaAngelle (English)[[labelnote: Foreign [=VAs=]]]Jessica Ángeles (Latin American Spanish), Creator/AdelineChetail (French), Patrizia Carlucci (German), Bruna Nogueira (Portuguese)[[/labelnote]]
[[quoteright:240:https://static.tvtropes.org/pmwiki/pub/images/suzune_horikita_anime.png]]

A beautiful girl who sits next to Ayanokouji. She is the opposite of Ayanokouji when it comes to friendship; she disregards it and thinks of making friends unnecessary, thus she does not communicate much with her classmates. She is not convinced that she was placed in the D class, therefore she aims to get promoted to the A class.

* AcademicAlphaBitch: Suzune is an exceptional student and she knows it, but her brother indicates that she's been assigned to Class D because she can't work with others. She does [[PetTheDog try an intervention with the three dumbest students]], but they walk out after tiring of her constant insults towards them, and she immediately decides to let them fail out of the school and stop dragging on Class D as a whole.
* ActionGirl: She held her own against Mio Ibuki despite having a fever for a week.
* AloofDarkHairedGirl: She's a beautiful dark-haired girl with an aloof personality.
* ArchEnemy: PlayedForLaughs with her hatred of Kushida, which she demonstrates by ignoring her at every opportunity. Later events in the novel play this trope seriously during their confrontation.
* AscendedExtra: The anime, due to being a CompressedAdaptation, promotes Suzune to the [[{{Deuteragonist}} "female lead"]] of Season 1. However, Season 2 amends this by putting the spotlight more on Kei Karuizawa, bringing the story closer to the [=LNs'=] approach where the female lead actually [[RotatingProtagonist changes from arc to arc]].
* TheBet:
** In order to get Kiyotaka Ayanokouji to use his full potential, she makes a bet with him about who'll score better in tests in their second year. He accepts, adding that she may even reveal the subject of her choosing right before the tests begin.
** She also accepts a bet from Koenji to let him have his freedom if he places well in Deserted Island Special Test, rising the stakes to him specifically placing first in order to be granted this.
* BeYourself: A major life lesson that she learns over the course of her first year is that she needs to stop pretending to be like her idealized image of her older brother and instead be her own true self.
* BrokenAce: She's beautiful, clever, graceful, skilled in self-defense, and virtually perfect academically, but that means nothing in a setting where classes are judged via group excellence and not individual skill. Manabu all but states that Suzune wouldn't have been stuck in Class D if she were willing to socialize with her peers.
* CharacterDevelopment: She grows from an AcademicAlphaBitch to a DefrostingIceQueen. She also eventually learns to stop trying to live as a copy of her perceived image of her older brother to please him and instead [[BeYourself be herself]].
* CompositeCharacter: The first season of the anime had Suzune take on roles that initially went to other characters in the light novels. For example, in the light novel, Kei is the one to help Kiyotaka sabotage their male classmates' attempt at peeping on the girls' changing room, as well as the one to give the RousingSpeech to the school about how Class D will eventually promote to Class A, but both scenes were given to Suzune in the anime.
* DeconstructedCharacterArchetype: Of the {{Tsundere}} stereotype. Her arrogance and contempt of ordinary people led to her having no friends since early childhood. Moreover, Kiyotaka practically becomes her main contact with the outside world, because, without his help, she is not even able to talk with classmates without starting a conflict.
* DefrostingIceQueen: She starts opening up to some of her classmates later on, albeit at a very slow pace.
* ExpositoryHairstyleChange: She grew her hair long because her brother lied to her about liking long hair. Near the end of the Year 1, she cuts her hair short, symbolizing her deciding to live as her own person instead of trying to be someone who only seeks her brother's approval.
* FriendlessBackground: Suzune hasn't had any friends since kindergarten.
* GoodIsNotNice: She may be a good person and have good intentions, but Suzune definitely isn't kind in her demeanor.
* ImNotHereToMakeFriends: She rejects any and all attempts from her classmates to befriend her, only caring about getting into Class A.
* IneffectualLoner: At the start, she believes she doesn't need anyone to get into Class A and prefers to isolate herself from her classmates. She's still forced to interact and cooperate with others to make sure Class D doesn't fail, as it would get her expelled along with everyone else. Also, most of her feats were only made possible by Kiyotaka helping her and/or letting her take the credit for getting the class out of trouble.
* InferioritySuperiorityComplex: She acts like everyone is beneath her to compensate for her inferiority complex towards her older brother. Despite her haughty and egotistic behavior, she's desperate to make her brother acknowledge her.
* ItsAllAboutMe: She initially claims to only care about herself. Her brother berates her for that attitude and mentions it's one reason why she ended up in Class D.
* JerkWithAHeartOfGold: Pretty much everyone would see her as a tough, aloof, cold, and hostile person who doesn't want friends and is only out for herself. In truth, she actually has a good heart and genuinely cares for others.
* LoveMartyr: Suzune is intent on [[WellDoneDaughterGirl proving her worth to her brother]], and she doesn't pay any heed to his humiliation and abuse of her.
* MistakenForRomance: Many of her classmates mistakenly think that she is dating, or at least close to Kiyotaka, since he is the only person in general who regularly talks to her. Kushida teases her about this in episode 7.
* MsFanservice: She has a few {{Shower Scene}}s, including one where she wears underwear on an island, and was shown in a bikini in a PoolEpisode. She's also shown naked, barely covered with steam, on the [[https://you-zitsu.fandom.com/wiki/File:Tape_J_080.jpg illustration for the "In the Changing Room" short story]] for Volume 8 of Year 2.
* NoSocialSkills: Her main flaw. She has been so focused on trying to excel academically to make her brother acknowledge her that she never worked on her social skills. Her bad attitude makes it difficult for her to interact with others without insulting them and driving them away. For a long while, Kiyotaka is the only person she can hold a decent conversation with. She slowly improves slightly, but she still struggles to form positive interactions with her classmates.
* NotSoDifferentRemark: During the sports festival, she tells Sudo that he's similar to her because both of them became tough to prove themselves to others, but ended up pushing others away because of their bad personalities. However, it's precisely because they're similar that Suzune believes they can become the better version of themselves by working with their classmates.
* OvershadowedByAwesome: In spite of being a brilliant girl and an excellent pupil, her differences with her brother are so great that she isolates herself from other people.
* PerpetualFrowner: Her default expression is a disdainful glare.
* ProperlyParanoid: She's a naturally distrusting person, which is why she believes Kushida keeps trying to approach her to sabotage her. Turns out she's right since Kushida is secretly a BitchInSheepsClothing who is determined to get her expelled for her own petty reasons.
* RunningGag: OnceAnEpisode in the light novels, Ayanokji will take a peek at what book she's reading at the moment and [[FirstPersonSmartass will make a comment on it]].
* ShipTease: With Kiyotaka, particularly in the anime. In the light novels, their relationship is more or less the same.
* StudentCouncilPresident: [[spoiler:She becomes one after Nagumo during the third semester of the second year.]]
* SuccessfulSiblingSyndrome: For her entire life, Suzune has lived under her more talented brother's shadow.
* TookALevelInKindness: She starts toning down her arrogant and demeaning attitude as she realizes she has to get along with her classmates and get their cooperation so they can move up the class ranking. She still isn't social enough to be friendly, but she does try to encourage and support her classmates in her own way.
* {{Tsundere}}: Harsh type. She coldly rebuffs any attempts from other people to make friends with her, yet she cares about her classmates more than she lets on.
* TsurimeEyes: She's an arrogant and strong-willed {{Tsundere}} whose eyes slant upwards.
* WellDoneDaughterGirl: Sister version. She devoted her whole life to education to earn her older brother's respect, to no avail. She even grew her long hair because he told her he likes it that way.
* WhenSheSmiles: Since she's serious most of the time, the rare moments when she actually smiles are all the more endearing. Kiyotaka notices how rarely she smiles.

[[folder:Kikyo Kushida]]
!!Kikyo Kushida
!!!'''Voiced by:''' Creator/YurikaKubo (Japanese), Creator/SarahWiedenheft (English)[[labelnote: Foreign [=VAs=]]]Nycolle González (Latin American Spanish), Anna Lauzeray-Gishi [first voice], Alice Orsat [second voice] (French), Franziska Trunte (German)[[/labelnote]]
[[quoteright:170:https://static.tvtropes.org/pmwiki/pub/images/kikyo_kushida_anime.png]]

A popular girl with a seemingly nice and cheerful personality. She aims to be friends with everyone not just in D class.

* AdaptationRelationshipOverhaul: In the light novels, she claims to hate Kiyotaka at first sight and the latter is fully weary of her, and their relationship doesn't get better as the series goes on. In the anime, however, they have plenty of ShipTease moments with Kushida even asking Kiyotaka if he would either choose to be with her or Suzune.
* AlliterativeName: '''K'''ikyo '''K'''ushida.
* AscendedExtra: Due to the first season of the anime being a CompressedAdaptation, Kushida has been promoted to being the Tritagonist of the series, with [[{{Deuteragonist}} Suzune]] being the female lead. In the light novels and the second season of the anime, the female lead [[RotatingArcs changes from arc to arc]].
* AttentionWhore: Growing up, Kushida was lavished with praise by those around her for every little achievement, and she found that she enjoyed the spotlight and attention. As she got older, the praise began to diminish as she became surrounded by equally talented people, and she resorted to being the class' gopher for positive attention, the stress of which prompted her to make a blog to vent her frustrations which ultimately led to the incident in middle school. In the present, she maintains [[BitchInSheepsClothing a pleasant façade]] to keep her classmates' attention on her by making herself seem the most likable student.
* BirdsOfAFeather: During the second year, she quickly gets involved with Takuya Yagami, a freshman who also uses a FalseFriend facade, much like her.
* BitchInSheepsClothing: She acts nice and friendly, yet when things don't go her way she completely becomes a different person, or rather her dark side is shown. She turns out to be two-faced, selfish, self-righteous, possessive, manipulative and can have insane reactions.
* {{Blackmail}}: She forces Kiyotaka to keep her darker personality a secret, lest [[FalseRapeAccusation she accuses him of trying to rape her]].
* BuxomBeautyStandard: She has the biggest breasts in Class D, and this is one of the reasons why she's so popular among her male classmates.
* CheatersNeverProsper: Suzune offers Kikyo a bet where they agree that Suzune and Kiyotaka will drop out from school if Kikyo scores higher than Suzune in a math test. To make sure she gets a perfect score, Kikyo conspires with Ryuen to get the test's answers. However, Suzune had predicted Kikyo would try to cheat and took precautions to make sure the actual test was different from the answers Kikyo got from Ryuen, causing Kikyo to fail the test and lose the bet against Suzune.
* ClassPrincess: Her good looks and friendly personality make her popular with her classmates to the point that she ranks third in positive votes of the Class Poll Exam. It's later revealed that she's actually a subversion; she's only pretending to be nice to get positive attention from her classmates, and in reality, she's very selfish and manipulative.
* CuteIsEvil: In the light novel, despite seeing [[BitchInSheepsClothing Kushida's true nature]], Kiyotaka still can't help but comment that she's incredibly cute.
* DarkSecret: She has a big secret that she doesn't want anyone to know and she wants to get Suzune expelled because she thinks Suzune might know about it since they went to the same middle school. It's later revealed to be Kikyo causing all her classmates from middle school to hate and attack each other by revealing all their dark secrets. She knows everyone in Class D will lose their trust in her if they find out, which would be detrimental to her goal of being the most popular girl.
* DisproportionateRetribution: Her reasons for hating Suzune are merely because she suspects that she knows about her true personality since they went to middle school together where Kushida was involved in a major incident. To make matters worse, Suzune didn't even see the incident herself, only heard a rumor about it. [[AssociationFallacy Kushida is willing to utterly destroy Suzune on the off chance that she paid attention to a rumor that she hardly cares about]].
* DudeMagnet: She quickly earns popularity from the guys.
* EvilIsPetty:
** While rather than outright evil she's insane, manipulative, and selfish, she is ok bringing down her entire class if it means she can humiliate Suzune.
** During middle school, when she was confronted by her class for her blog that held her unpleasant venting on her peers, she retaliated by exposing every single secret that was shared with her, including the badmouthing and infidelity that she had learned, sowing mass discord across the class.
* EvilSoundsDeep: Although rather insane and toxic than evil, her true persona has a deeper, mature, and seductive sounding voice compared to her cutesy one.
* FaceHeelTurn: She becomes a whistleblower for Class D, leaking information to Ryuen starting in Volume 4 (season 2 of the anime).
* TheFakeCutie: Her sweet and cute personality is faked. She's really a very mean-spirited, spiteful, and manipulative BitchInSheepsClothing.
* FalseFriend: To everyone. Kikyo only pretends to be friends with her classmates because she wants to be liked and stand out, but she's ready to backstab everyone if they discover her true nature.
* FalseRapeAccusation: After Kiyotaka discovers her [[BitchInSheepsClothing real personality]], she threatens to falsely accuse him of raping her if he doesn't keep his mouth shut, even [[ThanksForTheMammary placing his hand on her breast so she can have "evidence"]].
* FeelingOppressedByTheirExistence: It's revealed that Suzune and Kushida went to a previous school together where Kushida caused a huge scandal. While Suzune merely heard rumors about the event, Kushida sees her as the biggest threat to her "goody two shoes" reputation and tries desperately to get her expelled.
* GenkiGirl: Normally tries to act like one, but Kiyotaka finds out she Zigzags this when he sees her at the end of episode three when she's ranting about how much she hates Suzune's stuck-up attitude and her refusal of Kushida's repeated attempts to befriend her.
* GoodEyesEvilEyes: She usually has cute-looking TaremeEyes when she's in her NiceGirl persona. The evil eyes come out when she displays her darker personality.
* HateAtFirstSight: In the novel only, she claims this was the case with Ayanokouji.
* HatesBeingAlone: She tells Ayanokouji that she hates being suddenly left alone, and it's left as a possible reason for her insistence on being friends with ''everyone''.
* HeKnowsTooMuch: Back in middle school, Kikyo caused an incident that drove all her classmates to hate and fight each other until graduation. Suzune happened to go to the same middle school and although she didn't know the details of what happened, Kikyo is trying everything in her power to get Suzune expelled to not take any chances of people finding out about her past. She even extends this threat against Kiyotaka who discovers the truth as well.
* HiddenDisdainReveal: In her initial interactions with Suzune, Kikyo appears to be a NiceGirl who is just trying to befriend the class loner. That's until Kiyotaka happens to find Kikyo angrily kicking a railing as she screams about how much she hates Suzune. The reasons for her hatred are explained much later as they're related to Suzune hearing about an incident that Kikyo caused in their middle school.
* ImproperlyParanoid: She puts all her energy into trying to get Suzune expelled because she's paranoid about Suzune knowing all about a scandalous incident from her middle school. Actually, Suzune only heard second-hand rumors about the incident and she was rather disinterested in it because of her aloof personality. Suzune didn't even recognize Kikyo nor knew why she hated her until she learned Kikyo was even willing to conspire with Ryuen to sabotage her. Had Kikyo just left Suzune alone, neither Suzune nor Kiyotaka would have learned the full truth of her dark past.
* InsidiousRumorMill: Back in middle school, to vent the stress of being the class gopher in her bid for attention, she started a blog where she would badmouth all her classmates. Eventually, the blog was discovered and her class quickly deduced that it was hers, turning against her. Feeling ganged up on, she then proceeded to spill all the information about them that she didn't post, such as acts of infidelity and badmouthing others had done, which led to her classmates turning against each other instead.
* {{Irony}}: At the start of the series, Kikyo repeatedly tries to befriend Suzune, who just ignores her because she thinks she doesn't need friends. By the time Suzune realizes she ''has'' to get along with her classmates to get into Class A, Kikyo has dropped all pretenses of wanting to be friends with Suzune and is now determined to sabotage her. Suzune still doesn't want to give up on making peace with Kikyo, seeing her as a valuable asset to the class.
* MaleGaze: Her breasts get the camera's attention a lot.
* MistakenForRomance: When someone asks Kushida if she and Ayanokouji are dating, she gives a casual "Nope" and Ayanokouji concludes she's being sincere about not liking him.
* MsFanservice: She has several scenes in a bikini, a school swimsuit, and a ModestyTowel, usually paired with jiggle physics. She's also barely covered with a towel on the [[https://you-zitsu.fandom.com/wiki/File:Tape_J_080.jpg illustration for the "In the Changing Room" short story]] for Volume 8 of Year 2.
* TheMole: During the Special Test and the sports festival, Kikyo betrays her classmates and conspires with Ryuen to sabotage her own class, all to get a chance to get Suzune expelled.
* NeverMyFault: When she was in middle school, she was desperate to stand out. Instead of finding something she was really good at and liked to do, she opted to become an ExtremeDoormat to her classmates, only to eventually crack from the stress. She then wrote a blog to vent her frustrations, but it backfired when her classmates found out. Realizing she had fallen from grace, she spilled out all of her classmates' darkest secrets to ruin their social lives, all while blaming them for sharing their secrets with her and then expecting her to keep quiet when they stopped praising her.
* PainfulPersona: Her NiceGirl act began in middle school, where she acted like an ExtremeDoormat in order to make up for her lack of talent and [[AttentionWhore gain everyone's attention]]. This ended up causing her a great deal of stress, and whether or not her darker personality was from before this event, it [[SanitySlippage certainly didn't help]].
* PsychologicalProjection: She hates Suzune and wants her gone because she believes Suzune will try to ruin her by spilling out her dark secrets to her classmates. Suzune repeatedly tries to convince her that she has no intention of being her enemy, much less ruining her reputation, but Kikyo insists she can't take any chances with Suzune. As it turns out Kikyo is projecting her own petty and malicious nature on Suzune since in the past, she spilled out her classmates' darkest secret to turn them against each other and now is convinced Suzune will do the same to her at some point.
* RewardedAsATraitorDeserves: She turns into a traitor by selling out her class to Ryuen during the sports festival, just because she thought Ryuen would help her get Suzune expelled. After that fails because of Kiyotaka's interference, she tries to once again make a deal with Ryuen by giving him Class D's test questions in exchange for him giving her the answers of the math test to win her bet against Suzune and force her to resign from the academy. Then it turns out Suzune had made sure Kikyo wouldn't get the real questions of Class D's test and Ryuen left her to her fate, causing her to lose her last chance at getting Suzune to leave the academy.
* SecretKeeper:
** She does this with Ayanokouji, such as claiming that she was the one who obtained the old exams which helped their class tremendously during their midterm exams.
** The friendly facade that she maintained during middle school allowed her to earn the trust of many around her, and she'd eventually be trusted with some dark secrets. She later spilled out all the secrets shared with her out of spite for her classmates criticizing her blog.
* ShipTease: Occasionally with Ayanokouji in the anime.
** In episode 8, she interrupts Sakura's botched LoveConfession to Ayanokouji, and, when he tries to excuse himself from her presence, she slips back into her darker side briefly and tells him that she doesn't like being alone. She adds that she "hoped that he would..." and then she trails off, leaving everyone to guess what she is about to confess to him.
** In episode 12, she asks Ayanokouji who he would pick if it came down to a choice between herself and Suzune.
* SlaveToPR: {{Deconstructed|Trope}}. Kikyo cares for nothing but her own reputation and will do anything to look good in front of others. Back in middle school, taking on the persona of an ExtremeDoormat to impress her classmates only brought her stress and frustration, but she felt she couldn't quit to not damage her public image. She tried to vent by writing on an anonymous blog, but her classmates discovered what she was doing anyway and she brought them down with her by revealing all their darkest secrets. Now in high school, she obsesses about getting rid of Suzune over the small chance that Suzune might leak information about her past that would ruin her reputation again, even though neither Suzune nor Kiyotaka had any interest in doing anything against her until she kept trying to get them expelled.
* SmugSnake: Despite her villainous true nature, she fails to be an actual threat because she's so arrogant and short-sighted that she completely relies on her BitchInSheepsClothing act for her schemes against Kiyotaka and Suzune, both of whom can read her like a book and easily predict her actions to take countermeasures against her. After failing to get Suzune expelled over and over again, she tries to make Kiyotaka her new main target, unaware that picking a fight with [[ManipulativeBastard Kiyotaka]] would have worse consequences for her than anything Suzune would do to her.
* SomebodyDoesntLoveRaymond: {{Subverted|Trope}}. At first, it looks like Kikyo is trying so hard to get close to Suzune because she wants to be friends with everyone in her class and Suzune is the only one who rebuffs her attempts at befriending her. In reality, Kikyo hates Suzune and wants to sabotage her because she's paranoid about Suzune leaking information about an incident that happened in their middle school even though Suzune doesn't care and doesn't have any intentions to do so.
* StupidEvil:
** In the light novel, she willingly works with Ryuen in order to humiliate and expel Suzune, and the stupid part comes into play when Suzune points out that she is purposefully bringing down class D in order to do so.
** Even more so when she says she will get rid of Ryuen as well since he had seen her hidden side... [[ChronicBackstabbingDisorder to his face.]]
* VillainWithGoodPublicity: Since she hides behind a kind GenkiGirl persona, she's beloved by her classmates and even students from other classes. In the Class Poll, she ranked third place in getting positive votes. Subverted later on once her true nature is revealed to the class.
* WalkingSpoiler: It's hard to talk about her without mentioning that she's TheFakeCutie.

[[folder:Kei Karuizawa]]
!!Kei Karuizawa
!!!'''Voiced by:''' Creator/AyanaTaketatsu (Japanese), Creator/BrynApprill (English)[[labelnote: Foreign [=VAs=]]]Wendy Malvárez (Latin American Spanish), Geneviève Doang (French), Ness Gerung (German), Stephany Custodi (Portuguese)[[/labelnote]]
[[quoteright:235:https://static.tvtropes.org/pmwiki/pub/images/kei_karuizawa_anime.png]]

A girl with a bad attitude who is located at the top of the D class hierarchy. She fights with Kushida for their class' top 2 places.

* AffairHair: In volume 12, Kei finds a long red hair, belonging to Amasawa from the new Class 1-A, in Kiyotaka's room. She demands him to explain how and why another girl entered his room to leave that.
* AllGirlsWantBadBoys: She develops a crush on Kiyotaka, who by that point had her go through a NoHoldsBarredBeatdown, ColdBloodedTorture, and blackmail in order to further his schemes. Even she lampshades this by remembering what Kiyotaka put her through and still accepting the fact that she has fallen for him.
* AlliterativeName: '''K'''ei '''K'''aruizawa.
* AttentionWhore: Her biography says she likes being the center of attention.
* TheBait: One used both ways. Ryuen kidnaps and tortures Kei to lure the real mastermind, Kiyotaka, out of hiding. Actually, Kiyotaka had predicted what Ryuen would do and deliberately let him use Kei as bait so he could come to rescue her and show Ryuen the difference in power between them.
* BecomingTheMask: Despite the rocky start, Kei's role as Kiyotaka's forced assistant gradually becomes less and less true as she begins to feel comfortable working for him. To the point that, in volume 7, Kiyotaka telling her he will cut off their ties hurts her more than she is willing to admit. After Kiyotaka rescues her from Ryuen and re-establishes their relationship, their partnership becomes a legitimate one at the end of volume 7.5.
* BeneathTheMask: At first glance, she comes off as a stuck-up and self-centered popular girl who relishes getting attention. However, it is revealed that her outwards personality is a façade, as she uses her stuck-up popular persona as means to escape being bullied like she was in the past.
* BirdsOfAFeather: Her backstory has some similarities with Kiyotaka's, which is why both become attracted to each other and ultimately become lovers. Both were [[AllOfTheOtherReindeer ostracized]] by their peers (Kiyotaka for the talent he displayed in the White Room, while Kei was a BullyMagnet to the mean girls who disliked her), both have personas that they use as a means of protection (Kiyotaka's [[TheSociopath White Room persona]] and Kei's AlphaBitch persona).
* {{Blackmail}}: In volume 4, Kiyotaka blackmails Kei into effectively becoming his assistant in his various plans, since he doesn't like drawing attention to himself. It lasts up to volume 7, at which point Kiyotaka attempts to cut their connection off.
* BreakTheHaughty: At first, she puts on a pompous and headstrong mask because she doesn't want to let others know she's weak. After she attracts the attention of some bullies from Class C, Kiyotaka deliberately lets the bullying of Kei escalate and sets her up to be mercilessly beaten, until she's completely broken and desperate enough to do whatever Kiyotaka asks her to get his protection.
* BroodingBoyGentleGirl: She's the Gentle Girl to Kiyotaka's Brooding Boy.
* BullyMagnet: In middle school, Kei was subjected to traumatic bullying by other girls due to her headstrong and competitive nature. She was humiliated, forced to confess to people she didn't like, and was given animal corpses, and other nasty things just to make her upset. She tried to change her entire personality to make herself less subjectable to bullying, but some girls of Class C ended up targeting her for harassment and abuse anyway. This leaves her no choice but to become Kiyotaka's pawn in exchange for him using his machinations to protect her, which is exactly what he wants.
* ButtMonkey: Kei is one of the most abused characters in the series. She was a victim of horrific bullying in her past. Her panties get stolen by Ibuki to seed distrust in Class D during the survival test. Manabe's group harasses her over a trivial mistake she made when she accidentally pushed their classmate. Seeing her potential as a pawn, Kiyotaka sets her up to be [[NoHoldsBarredBeatdown brutally beaten]] by Manabe's group. Kiyotaka repeatedly uses her for his schemes while sharing minimum information with her and continues to manipulate her to assure her total emotional dependency on him. Ryuen kidnaps her and subjects her to WaterTorture in a cold room to try to get information about Kiyotaka out of her.
* TheConfidant: After she's blackmailed, she essentially works as one to Kiyotaka, since she is the only person who has seen his true personality thus far. Her role as his assistant also means she has the most insight into his plans, even if she doesn't really understand them.
* CryIntoChest: After being tortured by Ryuen, Kei breaks down crying on Kiyotaka's chest as he comforts her to make her more emotionally dependent on him.
* DamselInDistress:
** The first one happens in volume 4 (season 2 episode 3), when Manabe and a few other girls in Class C manage to corner her on the cruise ship. Just as Kiyotaka plans it, he swoops into 'rescuing' her and then takes advantage of her crippling fear of being bullied to blackmail her to do his bidding.
** The second one happens in volume 7 (season 2 episodes 11-12), when Ryuen and his gang manage to identify Karuizawa as the assistant of X, the true mastermind of Class D. After a series of HumiliationConga which culminates with Ryuen telling Karuizawa she was actually manipulated by X (Kiyotaka) from the very start, she remains defiant on not telling him who X actually is, which prompts Kiyotaka to come in and rescue her.
* DemotedToExtra: In season 1 of the anime, she has fewer scenes than she does in the light novel since some of her moments were given to Suzune instead. It's subverted from Season 2 onwards, as she gets the appropriate spotlight for the relevant arcs.
* FakeRelationship: She initially appears to be dating Hirata, but it's later revealed she only asked him to pretend to be her boyfriend to attach herself to the most popular guy in class and protect herself from potential bullying. She stops relying on Hirata when he refuses to defend her from Manabe's group, but keeps on the charade of them being a couple in front of their classmates, even after Hirata notices she's actually crushing on Kiyotaka.
* TheFashionista: She's known to be the most fashionable and modish student in her class.
* FirstNameBasis: She calls Hirata by his first name to make the charade of them being a couple more believable, but they aren't as close as they pretend to be. Later on, she starts calling Kiyotaka by his first name after she becomes his main accomplice.
* {{Foil}}:
** To Kushida. Both have another secret side to their personality which is found out by Kiyotaka, but Kushida's relationship with him is entirely antagonistic, and she grows to be so wary of him to the point she wants nothing more than to see him expelled to ensure her secret is safe. Karuizawa, on the other hand, gradually develops a genuine bond with him and later even forms a romantic relationship with him. Their time in middle school is also quite different despite both of them standing out. Kushida was LovedByAll due to her [[ExtremeDoormat willingness to be the class gofer]] before eventually losing her good standing by writing whatever secret her classmates told her of them on her blog to vent out stress and then spilling ''more'' secrets when being angrily confronted by them. Kei was viciously bullied by the other girls during middle school due to her headstrong and competitive nature, which psychologically damages her to the point of being willing to do ''anything'' as a way to NeverBeHurtAgain.
** To her friend, Maya Satou. Both are popular girls in the same friend circle and both are [[TheFashionista interested in fashion]], along with both developing a crush on Kiyotaka Ayanokoji. However, while he's not interested in using Satou for his plans, [[RomanticRunnerUp rejects her]], and judges her unworthy to smile for in his inner monologue; he sees Karuizawa as a useful pawn thanks to her influence among the girls and her dependant personality and eventually [[RelationshipUpgrade chooses her to be his girlfriend]].
* GyaruGirl: She has blonde hair, and is very interested in boys, fashion, and accessories.
* InferioritySuperiorityComplex: She puts on a bravado by making herself act prideful, vain, and outspoken, but in reality, she's very vulnerable and fearful of being bullied because of her traumatic experiences in middle school.
* LoveEpiphany: She realizes that she has fallen for Kiyotaka after he rescues her from Ryuen.
* LoveMartyr: Kiyotaka intentionally exposes her to Class C's bullying to blackmail and manipulate her by offering to protect her from all potential threats, to make her more loyal. Even after finding out the truth, Kei finds herself unable to betray Kiyotaka, and instead pledges UndyingLoyalty to him.
* AMatchMadeInStockholm: Kei's relationship with Kiyotaka kickstarts when he sets her up to be mercilessly beaten by Manabe and her posse, all to make her hit rock bottom and leave her no choice but to accept his protection for the rest of high school in exchange of her absolute obedience. From then on, Kiyotaka uses Kei as a tool constantly and exposes her to danger so he can rescue her and keep her dependent on him. It's very messed up and Kei knows it, but later on, she develops a crush on Kiyotaka and ends up becoming his girlfriend after he confesses to her.
* MatchmakerCrush: In volume 7.5, she attempts to play the matchmaker between Kiyotaka and Maya Satou. Not only it does not work, but Kei also ends up realizing she has basically fallen in love with Kiyotaka by the end of the volume.
* MinionManipulatedIntoVillainy: An anti-heroic example. Kiyotaka sets in motion the bullying of Kei from Manabe and her posse, all to break her spirit and turn her into his lackey for his manipulative schemes in exchange for him protecting her from further bullying.
* MoneyDumb: She's among the students who have recklessly spent their private points in the first month, causing her to ask her friends for buying things for her in the second month.
* MsFanservice: She has a ShowerScene in the anime and is shown in her underwear while changing.
* NeverMyFault: One of her character faults is her refusal to accept her own mistakes to not let others see her as weak.
* RelationshipUpgrade: After months of wrestling with her feelings for Kiyotaka, she finally receives a LoveConfession from him just before their 2nd year. She accepts, though they plan to keep it a secret from others... which lasts until [[spoiler:2nd Year Volume 5, where she loudly announces the relationship to the entire class while keeping the Ayanokouji Group from having lunch with him.]]
* SamaritanRelationshipStarter: In the light novel and manga, Kei starts getting a more positive impression of Kiyotaka's [[ManipulativeBastard manipulative true self]] when he asks her help in sabotaging their male classmates' attempt at peeping on the girls' changing room, which leads her to believe his ruthless schemes ultimately have the best interests of Class D in mind.
* SavvyGuyEnergeticGirl: Kei's the Energetic Girl to Ayanokoji's Savvy Guy.
* SecretRelationship: After Kiyotaka eventually asks her to be his girlfriend at the end of Year 1, they keep their relationship a secret for a while.
* ScarsAreForever: She has a large scar below her left breast as a result of the severe bullying she suffered in middle school.
* ShowerOfAngst: At the end of episode 1 of season 2, Kei is shown crying in the shower after some mean girls from Class C ganged up on her for accidentally pushing one of their classmates.
* SmarterThanYouLook: Despite originally being depicted as a very silly and frivolous girl, she is a lot smarter and socially adept than she lets on. This is why Kiyotaka considers her a good pawn to control the class.
* StalkerWithACrush: She ends up following Kiyotaka and Maya around a couple times due to her jealousy.
* TraumaButton: If Kei were to be intimidated or abused to a certain extent, it would trigger the [=PTSD=] she has from the severe bullying she suffered in elementary and middle school.
* {{Tsundere}}: Interestingly enough, she is a Harsh type for Kiyotaka after she realizes her feelings for him in volume 7.5. In the subsequent volumes, she tries ''hard'' to make it seem like she doesn't really care for him, but side stories focusing on her reveal she is basically helplessly infatuated with him.
* TheUnapologetic: She gets into trouble with Manabe and her posse when they demand her to apologize for accidentally knocking over one of their classmates, and Kei stubbornly refuses to apologize, which doesn't do her any favors since her attitude only motivates the girls to keep harassing her.
* UndyingLoyalty: She initially obeys Kiyotaka only because he promises to protect her from bullying, but she eventually becomes genuinely loyal to him. Even when she's bullied terribly by Ryuen and his lackeys, she never reveals Kiyotaka's name as X, surprising both him and Ryuen's lackeys. Kiyotaka then rescues her.

[[folder:Yōsuke Hirata]]
!!Yōsuke Hirata
!!!'''Voiced by:''' Creator/RyotaOhsaka (Japanese), Creator/DallasReid (English)[[labelnote: Foreign [=VAs=]]]Luis Navarro (Latin American Spanish), Bastien Bourlé (French), Levin Jäger (German), Carloz Magno (Portuguese)[[/labelnote]]
[[quoteright:205:https://static.tvtropes.org/pmwiki/pub/images/yosuke_hirata_anime.png]]

A leader in summarizing the D class. He is a perfect male student and it is a mystery why it was assigned to the falling class D class.

* BreakThemByTalking: He's on the receiving end when Kiyotaka tries to motivate him out of his HeroicBSOD after Ayanokoji motivates him by making him take responsibility for his failures.
* BrokenAce: Hirata has been highly implied to be one for a while; he is one of the smarter Class D students, fairly athletic, a social butterfly, and is effectively the "leader" of the class. Despite this, the series has been vague about what his actual character flaw is that landed him in Class D. Even Ayanokouji and Suzune, who are both good at reading character's hidden motives, have a hard time sizing Hirata up. Eventually, Kiyotaka learns his DarkAndTroubledPast.
* CharacterDevelopment: Thanks to a rather harsh motivation from Kiyotaka, he learns to move on from his past trauma, take responsibility for his actions, and accepts that it's alright to show his vulnerable side around his friends and ask them for help when needed rather than shoulder everything by himself.
* TheCharmer: Kiyotaka notes on the first day of class that Hirata is such a people-person that the rest of the class immediately gravitates towards him.
* DarkAndTroubledPast: He was traumatized over his old friend attempting to commit suicide and ending up comatose in middle school.
* DecoyLeader: In a sense. Hirata is treated and viewed as the leader of Class D by his peers, but Kiyotaka is normally the one who actually works as the problem solver behind the scenes.
* ExtremeDoormat: His defect is that he's a people-pleaser to a fault. This trait comes to effect when the class has to decide who to expel with him trying to save everybody. In the end, he couldn't stop Yamauchi from being expelled.
* FakeRelationship: He initially appears to be dating Karuizawa, but it's later revealed she only asked him to pretend to be her boyfriend to attach herself to the most popular guy in class and protect herself from potential bullying. She stops relying on Hirata when he refuses to defend her from Manabe's group, but keeps on the charade of them being a couple in front of their classmates, even after he notices she's actually crushing on Kiyotaka.
* HeroicBSOD: He experiences one after failing to prevent the first expulsion in his class due to ganging up on the target reminding him of his friend being bullied and DrivenToSuicide in the past.
* NiceGuy: His most distinguishing feature is his niceness.
* TraumaButton: His extreme reaction to Yamauchi's expulsion and resulting HeroicBSOD is because it cropped up memories of when his BestFriend in middle school was bullied.
* WellIntentionedExtremist: Back in Middle School, his friend attempted to commit suicide and ended up in a coma after suffering severe bullying in their class, and [[IgnoredEpiphany instead of reflecting on the outcome of their actions]], the class not only found a new person among them to torment, but those who previously [[BystanderSyndrome just didn't get involved]] ended up [[TookALevelInJerkass taking part in the bullying.]] An enraged Hirata then decided to take over the class and rule it through fear, using violence on both sides of any conflict that cropped up, which stopped the bullying, but also sucked out any joy his old class felt, causing them to operate more like robots than students.

[[folder:Rokusuke Kouenji]]
!!Rokusuke Kouenji
!!!'''Voiced by:''' Toshiki Iwasawa (Japanese), Creator/ChristopherWehkamp (English)[[labelnote: Foreign [=VAs=]]]Sergio Morel (Latin American Spanish), Simon Herlin (French), Tim Gössler (German), Dláigelles Riba (Portuguese)[[/labelnote]]
[[quoteright:290:https://static.tvtropes.org/pmwiki/pub/images/rokusuke_koenji_anime.png]]

A student who comes from a well-known family of scholars. He ended up in Class-D for his egotistical behavior.

* AcademicAthlete: He's a very smart student and an outstanding athlete.
* AdaptationalCurves: He's much bulkier in the anime adaptation.
* TheBet: He proposes a bet to Suzune so that he can be left alone and not be forced to cooperate in future special exams if he were to place well in Deserted Island Special Test. Horikita rises the stakes by agreeing to grant him freedom only if he scored the first place, [[spoiler:which he manages to do.]]
* BlatantLies: When the students must survive on a deserted island for a week, Rokusuke claims that he's not feeling well, despite having just swung around through the trees like a monkey hours earlier and being able to swim back to the ship, just so he can quit the test on the first day.
* BrilliantButLazy: His superb academic and athletic skills would make him a valuable member of the class, if only he bothered to put in the effort. He repeatedly skips out on school activities that he finds too boring or bothersome, like surviving on a deserted island for a week or participating in a sports festival, which comes to the detriment of his class. He only does put effort when it comes to events that involve expulsion.
* BullyingADragon: Although Kouenji remains mostly passive-aggressive at worst, likely not wanting to stoop to petty levels and not wanting Ryuuen to have a potential recording to use against him, he mockingly calls [[{{Sadist}} Kakeru Ryuen]] Dragon Boy during their encounter, ironically for this trope. He also states that he'd call suspecting him for lack of evidence that he controls Class D a stupid behavior.
* BunnyEarsLawyer: He's actually intelligent and academically gifted, but he is in Class D because of his narcissistic attitude and lack of social contribution, and therefore he just comes across as an egotistical and dimwitted beefcake.
* CharlesAtlasSuperpower: His strength and stamina are nearly superhuman. During the Mixed Training Camp, he performs a safe landing after jumping from a high cliff and single-handedly kills a wild boar.
* {{Cloudcuckoolander}}: It can't be denied that his attitude is definitely ''odd'' - such as when he walks around wet, after a shower, stating that a wet guy is more handsome, and when he jumps around in the vines like Tarzan.
* DumbBlonde: {{Subverted}} as he's a lot smarter than he looks, despite coming across as just a dimwitted egomaniac.
* EstablishingCharacterMoment: During his introduction, he refuses to give up his bus seat to an elderly woman. It's a very rude and selfish act, ''especially'' in Japanese culture, yet he argues it isn't fundamentally "wrong" when pointing out that it's ''not'' illegal for him to refuse to give up his seat just because of someone's age.
* {{Foil}}: To Kiyotaka Ayanakoji of all people. Both are way more skilled than they appear, in all kinds of areas. However, while Ayanakoji prefers to work in the shadows and only lets his true colors show to a select few when his plan calls for it and it benefits him in the long run, Koenji simply comes off as a BunnyEarsLawyer due to his eccentric behavior and rather than hide his talents, he just opts to rarely use them, valuing his freedom and his own choice to participate above all else.
* TheFriendNobodyLikes: Nobody in Class D likes him because he's so annoyingly self-centered that he doesn't care if his selfish actions cost points to the class. This is {{lampshaded}} by Yamauchi who points out everyone in the class dislikes Kouenji. However, he does have a high academic performance and is therefore valuable to the class.
* GagPenis: He, alongside Kiyotaka, has the largest assets amongst the male cast as revealed in volume 8.
* HateSink: Between his revolting narcissism and selfish attitude, there's basically nothing likable about this guy.
* {{Hunk}}: He has a well-built and muscular body, and is definitely one of the most handsome and manly-looking guys.
* InsufferableGenius: He's one of the smartest students in his class, despite his utterly self-absorbed and obnoxious personality.
* ItsAllAboutMe: He only cares about himself and getting what he wants, even if it comes at the hindrance of those around him.
* {{Jerkass}}: He's an arrogant and obnoxious egomaniac whose selfish behavior is a nuisance to everyone around him.
* JerkassHasAPoint: As seen in his EstablishingCharacterMoment, he isn't technically in the wrong when refusing to give his priority seat to the elderly woman, despite his action being a very, very ''rude'' thing to do in Japanese culture, since it's not "legally" required of him to do so. Even Kiyotaka lampshades his narration that Rokusuke has a point there when one takes away the emotional aspect of the action.
* MrFanservice: He's shown wearing just a speedo as his swimsuit, showing off his well-built body.
* {{Narcissist}}: He stares at himself in the mirror quite a lot.
* TheNicknamer: He usually calls other students by adding -boy or -girl to their names. Of particular note, he was the one to call Ryuen "Dragon Boy".
* NoSocialSkills: Given his sheltered upbringing, egotistical nature, and lack of willingness to cooperate, his social skills are quite abysmal.
* ProudBeauty: He knows he's handsome, with this being the main reason he's so narcissistic.
* TheReasonYouSuckSpeech: Kouenji mouths off at [[InsufferableImbecile Yamauchi]] for being an irredeemable defect that deserves to be kicked out of the school.
* ScrewTheRulesIHaveConnections: He's from a wealthy family and they apparently pay for his points if he needs them (even though it's not allowed due to the school's strict policy).
* SecretKeeper: He figures out Kiyotaka was the one who beat up Ryuen and his gang but doesn't have any interest in spilling his secret. Although, Kiyotaka knows he can't really do anything to stop Rokusuke from revealing the truth if he ever feels like it.
* SlasherSmile: His usual smug smile changes into this when he prepares to beat Yamauchi for attacking him, although their teacher stops them before the fight escalates.
* SmarterThanYouLook: He's definitely intelligent despite his narcissistic and frivolous attitude which makes him come across as an idiot.
* SmugSmiler: He's always seen wearing a smug grin.
* SpoiledBrat: He comes from a wealthy family of scholars and grew up thinking the world revolves around him, resulting in his belief that he's entitled to do whatever he pleases even if it makes him an inconvenience to other people.
* SuperSwimmingSkills: He's the fastest swimmer in his class, with a speed of 2.153 meters/second, which is considered to be on the tier of the world's best swimmers.
* UpperClassTwit: Played with. He is intelligent, but his narcissism and privileged upbringing leave his social skills something to desire.
* WildCard: He does whatever he wants and has no loyalty to anyone, nor lets anyone tell him what to do. Depending on his mood, he can be helpful to the class or ditch them for his own comfort. Even [[ManipulativeBastard Kiyotaka]] knows he can't make Rokusuke do what he wants him to.

[[folder:Ken Sudo]]
!!Ken Sudo
!!!'''Voiced by:''' Eiji Takeuchi (Japanese), Creator/BrandonMcInnis (English)[[labelnote: Foreign [=VAs=]]]Javi Sánchez (Latin American Spanish), Arnaud Laurent (French), Jermain Meyer (German), Leandro Loureiro (Portuguese)[[/labelnote]]
[[quoteright:255:https://static.tvtropes.org/pmwiki/pub/images/ken_sudo_anime.png]]

One of the "3 Idiots of Class-D" and a basketball team player for the club.

* AdaptationalJerkass: In the light novels, he's a lot more of the StraightMan to Ike and Yamaguchi's antics and showed a bit more remorse in attempting to spy on the girls changing room, in the anime he has no such qualms.
* BunnyEarsLawyer: He might come across as a petty thug, but he is an exceptionally good athlete. Aside from basketball he also had the fastest swim time in his class and was able to crush Class B in a volleyball tournament almost singlehandedly.
* CharacterDevelopment: He acts as an InsufferableImbecile at first, alongside the rest of "3 idiots of Class D". However, he ends up learning to control his HairTriggerTemper, acting more mature over the course of the series, and starting to put more effort in his studies.
* DumbJock: Although he has the best athletic ability compared to his classmates, he has very poor intelligence.
* FallGuy: Three Class C students attempt to frame him for an assault. Though Sudo does attack them, he claims it was in self-defense. Their story also has some holes in it, as Suzune wonders how he managed to hurt three guys around his size without taking a hit at all. In a normal fight, Sudo would've been at a huge disadvantage since it'd be a three-on-one fight. Suzune and Kiyotaka later clear his name using their own deception, and the three Class C students end up getting punished by the mastermind behind this incident.
* FieryRedhead: He has red hair and is pretty aggressive when angered.
* FirstFriend:
** In the light novels, he is the first person that Ayanokoji has a positive interaction with, and is usually the one that will invite him out.
** By the end of Volume 5 he also fills out this role for Suzune.
* {{Foil}}: To Haruki Yamauchi, one of his friend among the "3 idiots of Class D". Unlike him, Ken eventually puts more effort in his performance and is shown displaying mature behavior at times. He also actually has a girl genuinely attracted to him, unlike Yamauchi who was just being manipulated.
* HairTriggerTemper: He has a short temper and a thin-skinned personality, making him easily angered and provoked.
* HopelessSuitor: He has a crush on Suzune, but she only sees him as a valuable classmate at best.
* {{Hunk}}: He's muscular, tall, handsome, and manly.
* JerkWithAHeartOfGold: He may be rude and angry, but by no means a bad guy.
* LightningBruiser: He's the most athletic guy in class D along with Koenji, he is so good in fact that he can place 1st in all of the solo competitions during the sports festival before he drops out.
* TheMillstone: At least from Suzune's perspective. Sudo is academically one of the weakest students in class and shows no interest in improving his brash personality means that he is a magnet for false accusations of misbehavior. Basically, at the early stages of their school year, Class D will have to carry him across the line if they expect to have him graduate.
* MirrorCharacter: To Kanji Ike, one of his closest friends of "3 idiots of Class D" trio. Both act as a {{Foil}} to their remaining [[WithFriendsLikeThese "friend"]], Haruki Yamauchi, as unlike him, both Ken and Kanji end up eventually [[CharacterDevelopment putting more effort in their studies, acting more mature]], and getting a girl attracted to them.

[[folder:Kanji Ike]]
!!Kanji Ike
!!!'''Voiced by:''' Daiki Abe (Japanese), Creator/AaronDismuke (English)[[labelnote: Foreign [=VAs=]]]Brandon Montor (Latin American Spanish), Enzo Ratsito [first voice], Rémi Gutton [second voice] (French), Tom Ferenc (German), Guilherme de Barros (Portuguese)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kanji_ike_anime.png]]

One of the "3 Idiots of Class-D", who has poor intelligence, though his communication skills and experiences in camping are excellent. He is also shown to have a crush on Kushida.

* BelligerentSexualTension: While not really shown in the anime adaptation, Ike and Shinohara would often butt heads before [[spoiler:getting a RelationshipUpgrade in their second year.]]
* BookDumb: He's known as one of the "Three Idiots of D-Class".
* CharacterDevelopment: He acts as an InsufferableImbecile at first, alongside the rest of "3 idiots of Class D". However, he ends up acting mature when neeeded, such as when he apologized to the girls for not considering their feelings during Uninhabited Island Exam, standing up for Shinohara when Yamauichi taunts her for the rumor of her being a prostitute in middle school, and helping her in Deserted Island Special Test. He also ends up displaying his wilderness knowledge and eventually puts more effort in his performance at school.
* DeclarationOfProtection: He declares that he'll protect Shinohara when she's the [[SoleSurvivor only member of her group left]] during Deserted Island Special Test.
* EveryoneHasStandards: He dislikes Satsuki for looking down on him and the other boys, but he still tries to punch [[InsufferableImbecile Yamauchi]] when the latter insults and mocks Satsuki by taking advantage of the nasty rumors spread about the first-year students, one which claimed that Satsuki is a ''teenage prostitute''.
* {{Foil}}: To Haruki Yamauchi, his [[ThoseTwoGuys best friend]] among the "3 idiots of Class D". Unlike him, Kanji eventually puts more effort in his performance and is shown displaying mature behavior at times. He also actually [[spoiler:RelationshipUpgrade gets the girl after his SecondLove returns his affection.]]
* HeroicBSOD: He's left depressed when his SecondLove, Satsuki Shinohara, chooses to be in the same group for the Deserted Island Special Test as Kyougo Komiya, who also has a crush on her. Tsubasa Nanase eventually talks him out of this, motivating him to confess his feelings and focus on the exam first, as his potential expulsion would mean he'd likely never see her again.
* HiddenDepths: He's usually seen as one of the "three idiots" of Class D. However, he's actually a quite skilled survivalist.
* LazyBum: One of the less-than-stellar students of Class-D.
* MirrorCharacter: To Ken Sudo, one of his closest friends of "3 idiots of Class D" trio. Both act as a {{Foil}} to their remaining [[WithFriendsLikeThese "friend"]], Haruki Yamauchi, as unlike him, both Ike and Sudo end up eventually [[CharacterDevelopment putting more effort in their studies, acting more mature]], and getting a girl attracted to them.
* MoneyDumb: He's among the students who have spent all of their points in the first month, forcing him to live on free stuff for his second month.
* NatureLover: Proves to be one of the best people during the deserted island excursion. His previous camping skills come in very handy as he's able to identify a river, manages to start a campfire, and easily identifies various fruits some of the girls bring back. He also catches fish for his group in Deserted Island Special Test of the second year.
* RelationshipUpgrade: [[spoiler:With Satsuki, surprisingly. They eventually start dating in the 2nd year arc.]]
* SamaritanRelationshipStarter: Shinohara seems to warm up to Ike after he stands up for her when she's confronted about the false rumor of her being a prostitute and even tries to punch Yamauchi for using the rumor to insult her. Afterwards, they start getting along so well that their classmates think they're dating.
* SecondLove: His first crush on Kikyo Kushida goes nowhere. He then develops feelings for Satsuki Shinohara, with whom he actually [[spoiler:gets a RelationshipUpgrade in their second year.]]
* ThoseTwoGuys: With Yamauchi, so much that Suzune has trouble remembering which is who.

[[folder:Haruki Yamauchi]]
!!Haruki Yamauchi
!!!'''Voiced by:''' Mutsuki Iwanaka (Japanese), Creator/TravisMullenix (English)[[labelnote: Foreign [=VAs=]]]Víctor Ruiz (Latin American Spanish), Nicolas Dussaut (French), Marc Skanderberg (German), Matheus Tayti (Portuguese)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/haruki_yamauchi_anime.png]]

One of the "3 Idiots of Class-D", who has lying tendencies. He also has a crush on Kushida but has feelings for Sakura as well.

* BookDumb: He's known as one of the "Three Idiots of D-Class".
* BullyingADragon: He tries to attack Kouenji with a chair when the latter makes fun of him for being irredeemably useless to the end. Kouenji easily catches the chair and states he will return the ''favor'' back to Yamauchi for attacking him. Luckily, Sae steps in to stop them.
* CompulsiveLiar: According to the interviewer who assessed him during the entrance examination, Haruki tends to lie, which really bites him in the ass upon his exposure as a traitor during Volume 10.
* DefiantToTheEnd: {{Subverted|Trope}} as it's framed as him rejecting the reality of his consequences rather than being brave. When Haruki ends up getting exposed as a traitor by Suzune and faced expulsion, Haruki continues to selfishly deny any wrongdoing, attempts to say that he was "[[FrameUp framed]]", insults his now former classmates while boasting that Arisu and Class 1-A would save him. Then, when ''that'' didn't work since he and Arisu never made a "written contract" to protect him, which means that he has no physical proof besides his own word to go by, Haruki undergoes a complete VillainousBreakdown, leading to him attempting to assault Rokusuke with a chair when the latter insults him.
* {{Foil}}: To the remaining two members of the "3 idiots of Class D", Sudo and Ike. Both of them [[CharacterDevelopment mature]] over the course of the series, eventually starting to put more effort in their studies and displaying more responsible behavior. Both also end up having girls attracted to them. Meanwhile, Yamauichi never changes at all, continuing acting as an InsufferableImbecile, even displaying more and more [[HateSink unsympathetic traits]] over time. He's also generally [[TheFriendNobodyLikes disliked by just about everyone]] outside of his group and the one girl who seemingly was interested in him ended up just manipulating him to screw him over.
* HateSink: He was already one in the light novel, but the anime adaptation takes it up a notch by making him even more unsympathetic, making sure neither his classmates nor the audience will [[spoiler:miss him once he's the first one expelled from his class.]]
* HumiliationConga: By the end of The Class Poll, after a TemptingFate boast about being safe, he learns that Arisu Sakayanagi was merely using him as opposed to being genuinely in love with him and betrayed him, not giving her class's positive points to him, unlike she promised. Her scheme to have Yamauchi orchestrate Ayanokoji's expulsion with [[ClassPrincess Kushida's help]] turns out to be a ruse that was used against him. Finally, he finds out that he's been given the most negative votes, [[spoiler:being [[PutOnABus expelled]] as a result]], and his charge at [[TheBigGuy Koenji]] fails miserably. [[spoiler:He leaves the class in tears and screams of agony as all of his classmates watch his pathetic conclusion.]]
* InsufferableImbecile: He's one of the biggest idiots of Class-D, but even compared to Sudo and Ike, he's obnoxious, rude, and will do anything for a date, even betraying his own class.
* LaserGuidedKarma: In Volume 10, [[spoiler:he ends up expelled after he willingly betrays his class in order to get a date with Sakayanagi.]]
* LazyBum: One of the less-than-stellar students of Class-D. [[spoiler:This trait, along with his other flaws and Sakayanagi's manipulations, ends up leading him into being expelled by Volume 10.]]
* LustMakesYouDumb: His perverted tendencies bite him in the back, which leads him into being easily manipulated by Sakayanagi into being a traitor to Class-D on the "[[BlatantLies promise]]" of her being his girlfriend.
* TheMole: He ends up betraying Class-D by trying vote against Kiyotaka during the special exams on Arisu's orders.
* MoneyDumb: He's among the students who have spent all of their points in the first month, forcing him to live on free stuff for his second month.
* OhCrap: [[spoiler:He immediately freaks out upon hearing that his expulsion has been guaranteed. When he tries to deny it by telling Sae and everyone in Class 1-D that he has Arisu's and Class 1-A's protection, he further loses his composure when he has no "physical proof" of it aside from his own words. Then, when he hits his RageBreakingPoint after being insulted by Rokusuke, Yamauchi tries to assault him with a chair, only for his attack to be stopped ''dead'' by Rokusuke's immense physical strength and quickly realizes what a bad idea it was.]]
* PetTheDog: His only redeeming quality is that he can act somewhat maturely, although rarely, as shown after being rejected by Airi in Volume 4.5.
* PutOnABus: [[spoiler:He's the first classmate of Ayanakoji's to be expelled, which highly limits his chance for future appearances.]]
* RageBreakingPoint: After undergoing a FreakOut from [[spoiler:being expelled]], Haruki completely loses his temper upon hearing Rokusuke insulting him, taking a chair with the murderous intention of assaulting him.
* RewardedAsATraitorDeserves: [[spoiler:Arisu asks him to set all negative votes to Kiyotaka in the class poll. Yamauchi agrees because he thinks it'll get him a date with Arisu, but it was all a set up since the class ends up exposing him as a traitor and most of the negative votes end up going to him. Yamauchi still thought he would be safe because Arisu promised him her class's positive points, but that was a lie and she deliberately lets him take the fall and get expelled.]]
* SmallNameBigEgo: After he believes Arisu is romantically interested in him, Haruki views himself as his class's "lethal weapon". Not only is he completely unaware of her rather obvious manipulation of him, he didn't really have any influence thanks to this "alliance" either, with the ploy to cast negative votes on Kiyotaka Ayanokoji only initially succeeding thanks to [[ClassPrincess Kikyo Kushida]]'s influence (who had to be blackmailed by Sakayanagi into cooperating) and being easily turned against him. And that's not even mentioning that he has the poorest performance in the class.
* TemptingFate: He boasts to his classmates how he [[spoiler:can't be expelled because Arisu had promised him her class's positive points...only to soon learn [[ILied she had lied]] and he's indeed getting expelled.]]
* ThoseTwoGuys: With Ike, so much that Suzune has trouble remembering which is who.
* UnwittingPawn: Yamauchi wants to get a girlfriend so badly that it leads him into being easily duped by Arisu's promise to date him if he betrays Class-D.
* WithFriendsLikeThese: He's a part of the "3 idiots of Class D" trio with Ike and Sudo. However, when Suzune suggests him for expulsion, stating his poor contribution to the class as her first reason, he immediately throws his two supposed best friends under the bus, claiming they're just as bad as him. He then does it again when she states him plotting against Ayanokouji as her second reason, claiming that Kanji was the one who told him to cast his negative vote for Kiyotaka.

[[folder:Airi Sakura]]
!!Airi Sakura
!!!'''Voiced by:''' Creator/MaoIchimichi (Japanese), Creator/LeahClark (English)[[labelnote: Foreign [=VAs=]]]Jennifer Medel (Latin American Spanish), Amandine Hauguel (French), Jennifer Weiß (German), Michelle Giudice (Portuguese)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/airi_sakura_anime.png]]

A female photographer who joined Class-D, due to her fear and nervousness, causing her to have difficulties communicating and interacting with others. She dislikes standing out and likes to take modeling pictures.

* AttemptedRape: Episode 6 of season 1 reveals she has a stalker who sends her disturbing emails and pictures he's secretly taken of her. It later turns out to be the electronics store employee who took her camera in for repair. Fortunately, he only gets as far as unbuttoning her jacket before Kiyotaka shows up with Honami, along with two police officers who promptly arrest Airi's assailant.
* BespectacledCutie: She's a kind and adorable ShrinkingViolet wearing glasses.
* BookDumb: Her test scores are among the lowest in the class.
* CannotSpitItOut: It is pretty obvious that she has feelings for Kiyotaka, especially after he saves her from a rapist. But due partly to the other girls around him and her own shyness, she never manages to tell him she likes him.
* CatharticCrying: [[spoiler:When the day is through after her expulsion, she goes up to Kiyotaka and shows him her real face one last time before exiting the building, with the biggest smile she could muster. It's not until she's alone in the hallway that she wails and releases all that pent-up frustration and grief.]]
* DemotedToExtra: After the first season, the anime adaptation cut many of her already rare moments, effectively turning her into more of a background character.
* ExcellentJudgeOfCharacter: She has a fairly good intuition about people, as she instinctively can't trust or be comfortable around [[BitchInSheepsClothing Kikyo]] despite not having seen the nastier side of her personality.
* {{Foil}}: To her best female friend, Haruka Hasebe. While Haruka is more of TheTease and is generally easy-going, Airi is mostly a ShrinkingViolet, only able to upload her revealing pictures under her secret gravure idol persona. Hasebe is the one who insists their friend group refers to each other by their given names, Sakura struggles to be on FirstNameBasis with Ayanokouji. Finally, while Haruka is [[spoiler:temporarily be on bad terms with Kiyotaka after he causes Airi's expulsion]], Sakura herself has UndyingLoyalty to him and doesn't harbor hard feelings for that outcome.
* FormalCharactersUseKeigo: She's overly polite and formal, using ''keigo'' while speaking with everyone, including her classmates.
* GirlishPigtails: She's a feminine and demure girl with hair styled in low twin pigtails.
* TheGlassesGottaGo: She takes off her fake glasses when she takes pictures of herself under the identity of the gravure idol Shizuku.
* HiddenBuxom: While she looks average in her uniform, her street clothes make it obvious she's as big as Kikyo.
* HopelessSuitor: Every other girl attracted to Kiyotaka seems to have a chance with him, but Airi not so much because she gets the least amount of interaction with him and he sees no use in getting closer to her since her shy personality doesn't make her very useful for his plans. [[spoiler:She definitely loses any chance she had with him after she's expelled.]]
* MoralityPet: An interesting variation of one for Kiyotaka who intentionally orchestrates most of his PetTheDog moments to manipulate people. Sakura interestingly enough is the one person to whom he is genuinely kind without an ulterior motive. [[spoiler:This doesn't stop him from putting her up for expulsion in Year 2.]]
* MsFanservice: She has a well-developed figure, which she shows off in her pictures in a bikini as a gravure idol. She's also shown in a bikini that Kiyotaka describes as daring on an [[https://you-zitsu.fandom.com/wiki/File:LN_EN_2nd_Vol_4.5-01.jpg illustration]] from Volume 4.5 of Year 2.
* NiceGirl: She's one of the most benevolent people in the series.
* OutOfFocus: For a character who's set up as one of the main potential love interests for Ayanokoji, she's got much less focus than the other main heroines. Then there's the fact that [[spoiler:getting expelled]] [[PutOnABus doesn't help her case at all]].
* PurelyAestheticGlasses: Her glasses aren't real prescription ones; she only wears them to draw less attention to herself. She takes them off for her job as a gravure idol.
* PutOnABus: [[spoiler:To save the class on a test in 2nd Year Volume 5, Kiyotaka decides to offer her up for expulsion. Airi agrees to it, and she's officially expelled from school after a majority vote against her. It's later shown she is actually doing fine, as she went back on her gravure model job.]]
* RescueRomance: She develops a crush on Kiyotaka after he saves her from being sexually assaulted by her stalker.
* RoseHairedSweetie: She's a very gentle and pure-hearted girl with pink hair.
* SacrificialLion: [[spoiler:A non-fatal example. Her expulsion in Year 2 Volume 5 hammers in for the readers that not even the people who Kiyotaka values, and who are not a threat to his plans, are safe from his manipulations or be used as a scapegoat if they're no longer useful.]]
* SheCleansUpNicely: She looks much more attractive when she [[LettingHerHairDown unties her pigtails]], [[TheGlassesGottaGo removes her glasses]], and puts on cute outfits for her modeling pictures.
* ShipTease: She has a crush on Kiyotaka and is also one of the girls who are closest to him.
* ShrinkingViolet: She's a shy and nervous person who hates when people stare at her.
* SoBeautifulItsACurse: She's one of the prettiest girls in Class D when she dolls herself up, even being a popular gravure idol. Unfortunately, her looks nearly make her a victim of sexual assault from a creepy stalker, only being saved by Kiyotaka's arrival.
* StageName: She's a gravure idol with the stage name Shizuku.
* StalkerWithACrush: She follows Kiyotaka around a couple times while having a crush on him. Doing so is what makes her learn of Ayanokoji Group's existence and decide to join it.
* SurpriseWitness: She inadvertently becomes one during Sudo's trial against three Class C students who claim he beat them up after she reveals a picture that she took while the incident with Sudo and the others took place behind her. Though this doesn't clear Sudo's name, it does at least buy his classmates a few more days to try to come up with an alternate solution to his frame-up.
* TokenWholesome: In the PoolEpisode, she wears a rash guard instead of a revealing swimsuit like the other girls.
* TwoGirlsToATeam: She and Hasebe are the only girls of Ayanokoji's friend circle in Class D [[spoiler:before she ends up expelled]].
* UndyingLoyalty: She's very loyal to Ayanokoji after developing a RescueRomance crush on him. In fact, she still thinks positively of him even after [[spoiler:being expelled by him.]]
* WhenSheSmiles: She looks prettier when she smiles.

[[folder:Teruhiko "Keisei" Yukimura]]
!!Teruhiko "Keisei" Yukimura
!!!'''Voiced by:''' Tsubasa Gōden (Japanese), Creator/JoshGrelle (English)[[labelnote: Foreign [=VAs=]]]Geezuz González (Latin American Spanish), Enzo Ratsito [first voice], Rémi Gutton [second voice] (French), Alexander Gaida (German), Gabriel Martins (Portuguese)[[/labelnote]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/teruhiko_yukimura_anime.png]]

A boy with great intelligence, but poor athletic skills.

* AbandonmentInducedAnimosity: He resents his mother for abandoning him and his father.
* AffectionateNickname: He's called Yukimū by Haruka.
* AthleticallyChallenged: He has always been bad at sports and concentrated on studying instead. Despite his academic ability, his poor athletic ability landed him in Class-D.
* BookSmart: He's among the best academically performing students of his class.
* BullyAndWimpPairing: He forms this with Ishizaki while in the same group during Mixed Training Camp exam, being the Wimp to his Bully.
* CharacterDevelopment: In the light novel, Kiyotaka himself points out that throughout his first year Yukimura went from a person who believed academics is everything and looked down on those who struggle to study to someone who values the power of teamwork and intends to help his class in ways not just related to studying.
* DoNotCallMePaul: He doesn't like being called by his first name Teruhiko, given to him by his mother who abandoned him. He prefers the name given to him by his father, Keisei.
* HatesTheirParent: Since his mother left the family, he hates her so much that he refuses to use the first name that she gave him.
* TheLeader: He's the leader of his group during Mixed Training Camp, which he's insecure about.
* NoSocialSkills: His lack of social skills is one of the reasons why he's in the D-Class.
* RedHerring:
** He's used as a decoy for the VIP by Kiyotaka during the Cruise Ship Special Test.
** He's this InUniverse for the role of the secret mastermind of Class D after Ryuen learns that he and Ayanokoji were the only witnesses of Manabe and her group bullying Kei.
* SmartPeopleWearGlasses: He's one of the most studious students in Class D and he needs to wear glasses.
* TheStrategist: While not to the extent of Kiyotaka or even Suzune, he has his fair share of strategic planning. He's the one who suggests Ayanokoji's Group should spread their positive votes between each other for The Class Poll supplementary exam. He's also the one who suggests making a deal with Kohei Katsuragi to get info on Class A's chosen subjects for the Event Selection Exam.

[[folder:Haruka Hasebe]]
!!Haruka Hasebe
!!!'''Voiced by:''' Creator/YuikoTatsumi (Japanese), Creator/AlexMoore (English)[[labelnote: Foreign [=VAs=]]]Olga Patlán (Latin American Spanish), Samira Mameche (French), Julia Vieregge (German)[[/labelnote]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/haruka_hasebe_anime.png]]

A girl who tends to prefer keeping to herself. She only becomes sociable around people that she is comfortable with, such as those in the Ayanokouji Group.

* AlliterativeName: '''Ha'''ruka '''Ha'''sebe.
* BirdsOfAFeather: After being paired with Miyake for an exam, she connects with him due to both being [[LonelyTogether loners]].
* DCupDistress: She's uncomfortable about boys staring at her large chest.
* FirstNameBasis: She's the one who insists that the members of Ayanokoji's Group should refer to each other by their first names.
* {{Foil}}: To her best female friend, Airi Sakura. While Airi is mostly a ShrinkingViolet, only able to upload her revealing pictures under her secret gravure idol persona, Haruka is more of TheTease and is generally easy-going. Sakura struggles to be on FirstNameBasis with Ayanokouji whereas Hasebe is the one who insists their friend group refers to each other by their given names. Finally, Airi has UndyingLoyalty to Kiyotaka even after [[spoiler:being expelled]], whereas her [[spoiler:expulsion]] causes Haruka to [[spoiler:temporarily be on bad terms with him.]]
* LonerTurnedFriend: She prefers to keep to herself, which is why she was a loner before forming Ayanokoji's Group.
* MsFanservice: She has a well-developed figure, which she shows off while wearing a bikini that Kiyotaka describes as daring on an [[https://you-zitsu.fandom.com/wiki/File:LN_EN_2nd_Vol_4.5-01.jpg illustration]] from Volume 4.5 of Year 2.
* TheNicknamer: She has a habit of nicknaming her friends, such as giving Kiyotaka the nickname "Kiyopon" or "Ayanon".
* OneOfTheBoys: With the only exception of Airi Sakura [[spoiler:(who winds up being taken away from her due to being expelled)]], Haruka is mostly seen hanging out with just her male classmates.
* TheSmurfettePrinciple: She's the only female member of Ayanokoji's Group before Airi Sakura joins [[spoiler:as well as after she's expelled.]]
* TheTease: She teases Kiyotaka about getting to see her and Airi in a bikini.
* TwoGirlsToATeam: She and Sakura are the only girls in Ayanokoji's friend circle in Class D [[spoiler:before the latter is expelled]].
* WeUsedToBeFriends: Haruka is one of the forming members of Ayanokouji's Group, being one of his main study buddies. However, [[spoiler:she ends up on bad terms with him for a while after he suggests Airi for expulsion, succeeding in doing so. This ends up eventually subverted after they make amends.]]

[[folder:Akito Miyake]]
!!Akito Miyake
!!!'''Voiced by:''' Creator/RyoutaSuzuki (Japanese), Creator/JordanDashCruz (English)[[labelnote: Foreign [=VAs=]]]Miguel de León (Latin American Spanish), Morgan Sarpaux/Stevie Tomi/Sydney Taieb (French), Renato Hermeto (Portugese)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/akito_miyake_anime.png]]
A boy who tends to prefer keeping to himself. He only becomes sociable around people that he is comfortable with, such as those in the Ayanokouji Group.

* AffectionateNickname: He's called Miyatchi by Haruka.
* BirdsOfAFeather: After being paired with Hasebe for an exam, he connects with her due to both being [[LonelyTogether loners]].
* CurtainsMatchTheWindows: He has dark magenta hair and eyes.
* LonerTurnedFriend: Much like Haruka Hasebe, he prefers to keep to himself, which is why he was a loner before forming Ayanokoji's Group.
* MasterArcher: He's a skilled member of the Archery Club. When he represents his class against Class A in the archery competition of Event Selection Exam, he ends up scoring a point for his class.
* TheStoic: He's usually serious and rarely shows emotions.

[[folder:Maya Satō]]
!!Maya Satō
!!!'''Voiced by:''' Creator/{{Lynn}} (Japanese), Creator/MichelleRojas (English)[[labelnote: Foreign [=VAs=]]]Geezuz González (Latin American Spanish), Camille Ravel (French), Norma Anthes (German)[[/labelnote]]
[[quoteright:180:https://static.tvtropes.org/pmwiki/pub/images/maya_satou_anime.png]]

A girl who often hangs out with Kei Karuizawa, with whom she is especially close. After seeing Kiyotaka's performance at the sports festival, she develops a crush on him.

* BookDumb: Her test scores are among the lowest in the class and she admits to Kiyotaka that she doesn't like studying.
* TheFashionista: She's interested in fashion.
* {{Foil}}: To her friend, Kei Karuizawa. Both are popular girls in the same friend circle and both are [[TheFashionista interested in fashion]], along with both developing a crush on Kiyotaka Ayanokoji. However, whereas he sees Karuizawa as a useful pawn thanks to her influence among the girls and her dependant personality and eventually [[RelationshipUpgrade chooses her to be his girlfriend]], he's not interested in using Satou for his plans, [[RomanticRunnerUp rejects her]], and judges her unworthy to smile for in his inner monologue.
* TheFriendsWhoNeverHang: After a rumor about Maya hating Onodera is spread, Sōshi Miyamoto points out that the two girls have never been hanging out with just the two of them.
* HopelessSuitor: She develops a crush on Kiyotaka, who doesn't reciprocate and turns down her confession.
* RomanticRunnerUp: Although she only falls for him because of his [[WomenPreferStrongMen physical prowess]], Sato treats Kiyotaka kindly and prepares their date. However, he ends up rejecting her, eventually choosing Kei over her and judging her as "unworthy to smile for" in his inner monologue.
* UnknownRival: When rumors are spread about some of Class D (C at the time) students, one of the rumors is that Maya Satou hates Kayano Onodera.
* WomenPreferStrongMen: She ignored Kiyotaka when she thought he was a scrawny RidiculouslyAverageGuy. When she sees his athletic prowess at a track race, she immediately falls for him.

[[folder:Chiaki Matsushita]]
!!Chiaki Matsushita
!!!'''Voiced by:''' Masumi Tazawa (Japanese), Creator/BrittneyKarbowski (English)[[labelnote: Foreign [=VAs=]]]Gabriela Ortiz (Latin American Spanish), Clotilde Verry (French), Julia Bautz (German), Juju Bac (Portuguese)[[/labelnote]]
[[quoteright:180:https://static.tvtropes.org/pmwiki/pub/images/chiaki_matsushita_anime.png]]

A girl who often hangs out with Kei and Maya. She's decent at studying but doesn't really stand out in class.

* BrilliantButLazy: She could easily score in the top 10% of her class if she truly tried to, but believes it's to be pointless because she's in the lowest of the classes.
* ExcellentJudgeOfCharacter: Although she falls for his RidiculouslyAverageGuy act at first like most others, Chiaki realizes there must be more to Kiyotaka after he correctly answers the hardest question of the mental math competition of the Event Selection Evam in her place.
* {{Fauxshadow}}: Near the end of their first year, she pieces together that Kiyotaka Ayanokouji is more than just a RidiculouslyAverageGuy based on a few hints and [[StalkerWithoutACrush following him around]] and approaches him about the matter. This seems to hint that she's become a major character, who could potentially be promoted to the main heroine of an incoming arc. However, [[spoiler:she ends up retaining a relatively minor role throughout the second year, rarely getting the spotlight.]]
* {{Foil}}: To Kiyotaka Ayanokoji. Both are more gifted than they let on. However, while Ayanakoji is a prodigy RaisedInALab and capable of outright inhuman feats, Matsushita is skilled on more realistic level, being more on par with the likes of Suzune and Yukimura.
* MirrorCharacter: To Rokusuke Kouenji. Both come from at least moderately wealthy background and both have a case of BrilliantButLazy, being gifted enough to carry their class, but choosing not to for various reasons, be it freedom in Koenji's case or feeling like it's pointless to work so hard while stuck in Class D in Matsushita's case. The only difference is that Rokusuke is much more capable than her.
* NiceGirl: She's generally kind to everyone around her. This can be seen when she stands up for Satou after there's a rumor spread about her hating Onodera.
* SpoiledSweet: According to her, she was born and raised in a moderately wealthy family where she was brought up in a kind and free environment. She would achieve outstanding results in school and, in return, her parents would get her whatever she desired.
* StalkerWithoutACrush: After the first event selection exam, she started to pay close attention to Kiyotaka by following him around from afar.

[[folder:Satsuki Shinohara]]
!!Satsuki Shinohara
!!!'''Voiced by:''' Saori Koda (Japanese), Creator/LuciChristian (English)[[labelnote: Foreign [=VAs=]]]Adriana Olmedo (Latin American Spanish), Amandine Hauguel (French), Daniela Kälin (German), Luana Stteger (Portuguese)[[/labelnote]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/satsuki_shinohara_anime.png]]

A female student who often associates with the girls in the class. She's quite sociable, but her academic and physical abilities are both low.

* AlliterativeName: '''S'''atsuki '''S'''hinohara.
* BelligerentSexualTension: While not really shown in the anime adaptation, Shinohara and Ike would often butt heads before [[spoiler:getting a RelationshipUpgrade in their second year]]. Satsuki also [[HeIsNotMyBoyfriend denies dating him]] while growing closer to him.
* CryIntoChest: She cries into Ike's chest after coming out of her hiding spot during Deserted Island Special Test, afraid after her group had been attacked.
* HeIsNotMyBoyfriend: When her friends ask her about her recent dates with Kanji Ike, she denies that their relationship is like that.
* InformedFlaw: {{Justified|Trope}}. She's mentioned to have an "ugly" personality by Ike, but considering their poor relationship, he's the only one who thinks of this.
* MistakenForProstitute: She gets mocked by Yamauchi after rumors of her being a teenage prostitute spread across the school.
* RelationshipUpgrade: [[spoiler:She becomes Ike's girlfriend in the 2nd year arc.]]
* SamaritanRelationshipStarter: She seems to warm up to Ike after he stands up for her when she's confronted about the false rumor of her being a prostitute and even tries to punch Yamauchi for using the rumor to insult her. Afterwards, they start getting along so well that their classmates think they're dating.
* SecondLove: She's the second LoveInterest for Kanji Ike, after his first crush on Kikyo Kushida. Unlike his former crush, they actually [[spoiler:get to have a RelationshipUpgrade.]]
* SoleSurvivor: A non-lethal example. She's the last remaining member of her group in Deserted Island Special Test after Komiya and Kinoshida had to be medically evacuated following being pushed over the edge.

[[folder:Mei-Yu Wang]]
!!Mei-Yu Wang
!!!'''Voiced by:''' Amisa Sakuragi (Japanese), Creator/DawnMBennett (English)[[labelnote: Foreign [=VAs=]]]Fer Navarro (Latin American Spanish), Geneviève Doang (French), Mascha Raykhman (German), Raissa Bueno (Portuguese)[[/labelnote]]
[[quoteright:230:https://static.tvtropes.org/pmwiki/pub/images/mei_yu_wang_anime.png]]

An international student from China.

* AffectionateNickname: She's nicknamed Mii-chan by the girls she's close to.
* AllLovingHeroine: She's so nice and kind that she [[UndyingLoyalty remains loyal]] to Hirata even after he mistreats her so that he wouldn't feel alone, and becomes the [[OnlyFriend only person]] to form a closer bond with [[TheNarcissist Koenji]].
* AthleticallyChallenged: She runs behind the other 1st year girls while jogging.
* GirlishPigtails: Her hair is tied up in twin-tails, emphasizing her status as the TokenMiniMoe.
* LoveMartyr: She continues to check up on Hirata, even though he mistreats her as she does so, just so that he'd know there's someone by his side.
* NiceGirl: Mei-Yu doesn't have a mean bone in her body.
* TokenMiniMoe: She's by far the shortest girl and classmate of Class D in general, which coupled with her NiceGirl personality adds to her endearing attributes. Koenji in fact becomes protective of her.
* TokenMinority: She's the only student in Class 1-D to be non-Japanese, originally hailing from China during elementary school.

[[folder:Hideo Satamura]]
!!Hideo Satamura
!!!'''Voiced by:''' Shunsuke Kawabe (Japanese), Creator/MattShipman (English)[[labelnote: Foreign [=VAs=]]]Bruno Méyère (French), Christian Intorp (German), João Victor Granja (Portuguese)[[/labelnote]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/hideo_sotomura_anime.png]]

An otaku who helps the operation of spying on girls.

* HonoraryTrueCompanion: While he's not officially considered a part of the "3 idiots of Class D", he usually hangs out with them.
* NerdGlasses: He's an {{Otaku}} who wears glasses.
* NerdsArePervs: He's a perverted {{Otaku}}. In the PoolEpisode, he supervises the operation of spying on girls in changing room. He's also made a list of his female classmates' bust sizes.
* {{Otaku}}: Among his interests are bishōjo games, manga, and anime.
* UnderdogsAlwaysWin: Despite being among the least impressive students of his class, he scores a point for his class in the typying competition of Event Selection Special Exam.

[[folder:Ryōtarō Hondō]]
!!Ryōtarō Hondō
!!!'''Voiced by:''' Kouseki Kogure (Japanese)[[labelnote: Foreign [=VAs=]]]Wallace Soares (Portuguese)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/rytar_hond_anime.png]]

A student in Class D who likes fat girls.

* FetishesAreWeird: When rumors are spread about some of the students of his class, his rumor is that he's only into fat girls.
* HonoraryTrueCompanion: While he's not officially considered a part of the "3 idiots of Class D", he usually hangs out with them.
* LivingProp: He's been given very little characterization and importance, mostly being used to just fill in the scenes of his class. Episode 4 of Season 3 of the anime gives him the most focus thus far and even that's still a minor role.
* MoneyDumb: He's among the students who have spent all of their points in the first month, forcing him to live on free stuff for his second month.

[[folder:Kayano Onodera]]
!!Kayano Onodera
!!!'''Voiced by:''' Creator/MakotoKoichi (Japanese), Kelsey Maher (English)
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kayano_onodera_anime.png]]

An athletic girl in Class D who has a crush on Ken Sudo.

* BirdsOfAFeather: She has a crush on Sudo, a fellow athlete in her class.
* BoyishShortHair: She has short hair, which is meant to add to her {{Tomboy}} traits.
* DemotedToExtra: While she's not a major character by any means, the anime adaptation reduces her role to a LivingProp due to not adapting her more noticeable moments.
* TheFriendsWhoNeverHang: After a rumor about Maya hating Onodera is spread, Sōshi Miyamoto points out that the two girls have never been hanging out with just the two of them.
* HopelessSuitor: She has a crush on Ken Sudo, who has a crush on Suzune Horikita.
* MaleGaze: When the girls are enjoying themselves at a pool in the premiere episode of the anime's second season, there are two close-up shots on Onodera wearing a rather skimpy bikini.
* PassionateSportsGirl: She's good at sports.
* TomboyWithAGirlyStreak: She's interested in sports and has the shortest hairstyle of all the girls in her class, if not all female characters in general. Although most of her traits are typically tomboyish, she's shown enjoying shopping and hanging out with other girls.
* UnknownRival: When rumors are spread about some of Class D (C at the time) students, one of the rumors is that Maya Satou hates Kayano Onodera.

[[folder:Kokoro Inogashira]]
!!Kokoro Inogashira
!!!'''Voiced by:''' Creator/ShinoShimoji (Japanese), Creator/AmandaGish (English)[[labelnote: Foreign [=VAs=]]] Elizabeth Infante (Latin American Spanish), Clotilde Verry (French), Clara Campos (Portuguese)[[/labelnote]]
[[quoteright:175:https://static.tvtropes.org/pmwiki/pub/images/kokoro_inogashira_anime.png]]

A timid girl in Class D.

* LivingProp: She's only ever been used to fill in the scenes of Class D.
* ShrinkingViolet: In the light novel, she introduces herself to the class after Yosuke Hirata. Courtesy of her shy personality, she ends up stuttering and rushing her introduction, feeling embarrassed as a result. Kikyo Kushida cheers her up, saying that she's going to be fine as long as she takes time in building up her words.
* TextileWorkIsFeminine: She's a girly and demure girl whose hobby is sewing.

[[folder:Kyōsuke Okitani]]
!!Kyōsuke Okitani
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/kysuke_okitani_anime.png]]

A boy in Class D with bad grades.

* BookDumb: Even in Class D, he has particularly bad grades.
* LivingProp: He's only ever been used to fill in the scenes of Class D.
* SpearCounterpart: Appearance-wise, he looks like a male version of Kayano Onodera.

[[folder:Nene Mori]]
!!Nene Mori
!!!'''Voiced by:''' Creator/RinaHonnizumi (Japanese), Marianne Bray (English)[[labelnote: Foreign [=VAs=]]] Mayara Stefane (Portuguese)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/nene_mori_anime.png]]

A girl in Class D who joined the study group with Ayanokoji, Kushida, Karuizawa, Hirata, Matsushita, and the "3 Idiots of Class D".

* LivingProp: She's only ever been used to fill in the scenes of Class D.

[[folder:Sōshi Miyamoto]]
!!Sōshi Miyamoto
!!!'''Voiced by:''' Kazuki Miyagi (Japanese), Eric Wheeldon (English)
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/sshi_miyamoto_anime.png]]

A boy in Class D who looks similar to Kiyotaka Ayanokoji and Ryoutarou Hondou. He points out that Maya Satou and Kayano Onodera never hang out together when a rumor of Maya hating Kayano is spread.

* LivingProp: He's only ever been used to fill in the scenes of Class D.
* TheStoic: He has a similar resting poker face to Kiyotaka Ayanokouji.

[[folder:Wataru Ijūin]]
!!Wataru Ijūin
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/wataru_ijin_anime.png]]

A chubby student in Class D with glasses.

* LivingProp: He's only ever been used to fill in the scenes of Class D.

!!Introduced in Year 2
[[folder:Tsubasa Nanase]]
!!Tsubasa Nanase
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/tsubasa_nanase_ln_visual.png]]

A freshman in Class 1-D with a mysterious interest in Kiyotaka.

* ChildhoodFriends: She was close friends with [[spoiler:Eiichirō]] from an early age.
* ConnectedAllAlong: It turns out that she was ChildhoodFriends with [[spoiler:Eiichirō, the son of a butler who helped Kiyotaka escape the White Room, and his suicide is what drives her {{Revenge}} against Ayanokoji.]]
* FormalCharactersUseKeigo: She's a very polite girl who speaks in respectful ''keigo'' to whoever she is speaking to, including her classmates.
* HairOfGoldHeartOfGold: She has blonde hair and other than her initial dislike of [[spoiler: Kiyotaka]], she is a polite, honest, and responsible girl.
* HeelFaceTurn: While she is hardly a villain in the first place, she still is antagonistic to Kiyotaka when she first meets him. After [[spoiler:he defeats her without harming her]], she realizes that he's a decent guy, apologizes for her actions, and treats him as a friend afterward.
* JerkassToOne: Tsubasa is a very polite and goodhearted girl, but she's antagonistic towards Kiyotaka, to the point of [[spoiler:wanting to get him expelled]], because [[spoiler:she blames him for the suicide of her friend Eiichirō]].
* MisplacedRetribution: She blames Kiyotaka for [[spoiler: Eiichirō's suicide, despite the fact that Kiyotaka couldn't have possibly known that him escaping the White Room would result in such a horrible event.]]
* MoralityPet: Compared to all the people who have tried messing with Kiyotaka, he doesn't try to hurt Tsubasa [[spoiler:when they fight]] and is always polite to her. It helps that she's actually decent and polite, and [[spoiler: Kiyotaka realizes that Tsukishiro is manipulating her]].
* PlatonicLifePartners:
** With her ChildhoodFriend [[spoiler:Eiichirō]]. They share a very close bond without any romance between them.
** She's usually seen with Kazuomi Housen, but they're not a couple.
* RedHerring: Due to being one of the main freshmen introduced in Year 2 arc as well as her {{Revenge}} against Kiyotaka, she's this for the role of [[spoiler:the White Room student sent to expel Ayanokoji.]]
* {{Revenge}}: [[spoiler:Eiichirō's suicide greatly affected Tsubasa to the point that she attended the Advanced Nurturing Academy in ''Year 2'' to exact revenge on Kiyotaka by getting him expelled.]]
* SheatheYourSword: [[spoiler: This is the approach Kiyotaka takes when fighting her in Year 2 Volume 3, as he opts to simply dodge all her attacks and let her tire herself out despite being fully capable of delivering a CurbStompBattle.]]
* UnwittingPawn: She is trying to [[spoiler:get Kiyotaka expelled]], but does so because she is being manipulated by [[spoiler:Tsukishiro]].

[[folder:Kazuomi Hōsen]]
!!Kazuomi Hōsen
[[quoteright:230:https://static.tvtropes.org/pmwiki/pub/images/kazuomi_hsen_ln_2nd_year_arc_visual.png]]
A freshman in Class 1-D who much like Ryuen prefers to conquer his opponents with violence.

* {{Jerkass}}: He rivals Ryuen's initial behavior in the asshole department.
* MirrorCharacter: Everything from the way he wears his school uniform to his violent tendencies may easily remind one of Ryuen.
* PlatonicLifePartners: He's usually seen with Tsubasa Nanase, but they're not in romantic relationship.
* PlayingTheVictimCard: He tried to expel Kiyotaka Ayanokouji by stabbing himself with a knife and framing him for the assault.
* RedHerring: Due to being one of the main freshmen introduced in Year 2 arc and being one of the students actively trying to expel Kiyotaka, he's this for the role of [[spoiler:the White Room student sent to expel Ayanokoji.]]
* ViolenceIsTheOnlyOption: His strategies involve violence.

!A-Class Students
!!Introduced in Year 1
[[folder:Kohei Katsuragi]]
!!Kōhei Katsuragi
!!!'''Voiced by:''' Creator/SatoshiHino (Japanese), Creator/JarrodGreene (English)[[labelnote: Foreign [=VAs=]]]Héctor Estrada (Latin American Spanish), Philippe Roullier (French), Georgios Tzitzikos (German), Glauco Marques (Portuguese)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kouhei_katsuragi_anime.png]]

An intelligent student who worked very hard to reach Class 1-A and became one of its representatives.

* AlliterativeName: '''K'''ōhei '''K'''atsuragi.
* EnemyMine: Although they're not friends, he accepts [[spoiler:transferring to Kakeru Ryuen's class]] so that the two could work together against Arisu Sakayanagi, their common rival.
* FaceOfAThug: He is described as looking very intimidating, but is actually incredibly intelligent, well-spoken, and polite.
* GracefulLoser: He intended to be this in the Expulsion Test, recognizing Class A's failures with him in charge made him the most likely target, even smiling in resignation when the polls were going to be announced. However, to his surprise and horror, the one with the most negative votes instead ends up being [[spoiler:his NumberTwo, with [[ManipulativeBitch Sakayanagi]] making it so he'd stay in acknowledgment of his talent, while deriding his friend for lacking it.]]
* NiceGuy: He's very serious and comes across as somewhat aloof, but he's a kind and polite guy.
* NobleDemon: Not that he's evil by any means, but belonging to Class A, he technically has an antagonistic role; despite this, he strikes up a genuine friendship with Ayanokji and ends up proving himself to be a reliable friend. For all his proud, serious, and somewhat haughty attitude, he is also shown to honorable and kind.
* PrematurelyBald: He's already bald at an age of a high school student.
* SixthRanger: [[spoiler:During the second year, he's transferred to the former Class C, becoming their new classmate.]]
* WinsByDoingAbsolutelyNothing: He tries to invoke this with his strategy of remaining silent throughout Cruise Ship Special Test meetings so that there would be no traitor, which would be especially profitable for his class, given that the class hierarchy wouldn't change as a result.
* YoungerThanTheyLook: He's a first-year, but looks much older.

[[folder:Arisu Sakayanagi]]
!!Arisu Sakayanagi
!!!'''Voiced by:''' Creator/RinaHidaka (Japanese), Creator/TrinaNishimura (English)[[labelnote: Foreign [=VAs=]]]Montserrat Aguilar (Latin American Spanish), Anna Lauzeray-Gishi (French), Leonie Dubuc (German), Isabella Guarnieri (Portuguese)[[/labelnote]]
[[quoteright:175:https://static.tvtropes.org/pmwiki/pub/images/arisu_sakayanagi_anime.png]]

The main leader of Class-A. She is shown to be highly intelligent, as she seems to have very high knowledge of the school rules and the S-system. There is an intense rivalry between her and Ryuen alongside their respective classes as she thinks his challenges against Class A are interesting but ultimately futile.

* AntiVillain: Her fixation on Ayanakoji, as well as a lot of the dubious actions she makes in her efforts to get closer to and defeat him, are due to [[spoiler: sharing her father's concerns about places like [[BoardingSchoolOfHorrors the White Room]] becoming a widely practiced education facility, and so wants to defeat him to invalidate their use and prevent them becoming widespread.]]
* TheChessmaster: Unlike Ryuen who uses a direct approach, she prefers more subtle ways. She's even seen playing chess against herself.
* ChessMotifs: In the anime adaptation, the game of chess becomes her IconicItem even more so than in the light novel: not only is it her fateful first one-on-one battle against Kiyotaka Ayanokoji and she describes the school as her own chessboard with her own pawns, she's also shown playing chess all the way back in Season 1 while the opening of the third season, which focuses on her and Ayanokoji, uses a heavy chess theme.
* ClassyCane: She walks around with a cane that makes her look classy.
* ConnectedAllAlong: A bit of an odd case due to the encounter being [[spoiler:entirely one-sided, with her seeing Ayanokouji when her father brought her to the White Room 8 years prior.]] But the meeting seems to have stuck with her, considering she can recall the amount of time she last saw him, down to the number of days.
* EvilIsPetty: Granted, [[AssholeVictim the person she went after was hardly underserving of it]], but the entire reason she used Yamauchi as a pawn in her scheme to ensure Ayanakoji wasn't expelled before promptly backstabbing him was because he accidentally but unapologetically knocked her over and [[NeverMyFault derided her as clumsy for it.]]
* FormalCharactersUseKeigo: She's a polite and refined girl who uses ''keigo'' in her speech with everyone.
* FriendlyEnemy: Is very friendly and explicitly states that she holds no ill will towards Ayanokouji despite her goal of "burying" him. This is because she knows that is exactly what he wants.
* GeniusCripple: She's physically crippled due to her heart condition, causing her to walk with a crane. She's also one of the smartest characters in the entire franchise.
* GracefulLoser: After she wins a match against Kiyotaka, she finds out she only won because of Tsukishiro's meddling. In the aftermath, she challenges Kitoyaka to a rematch and he defeats her fair and square, a result which she gracefully accepts.
* HeightAngst: Apparently [[HeightInsult using her small stature to insult her]] really grinds her gears.
* HimeCut: She has blunt bangs, cheek-length sidelocks, and shoulder-length straight hair. Her hairstyle fits her refined behavior as well as her status as the chairman's daughter.
* IconicItem: Both her ClassyCane, which she needs to walk, and the game of chess in general, which is often used to [[SmartPeoplePlayChess point out that her intelligence]].
* ItsPersonal: With Yamauchi of all people! This was because he tripped her when he didn't notice her and was half-assed in his apology, but not before talking loudly enough for Arisu to hear that she is cute but clumsy. This leads to her [[spoiler:orchestrating his expulsion.]]
* TheRival:
** Seems to have a rivalry with Ryuen for supremacy.
** More directly in a rivalry with Ayanokouji, though an odd example because it is only because he wants her to be one and defeat him.
* ShorterMeansSmarter: She's one of the smallest students of her grade and one of the top students.
* SignatureHeadgear: She wears a black beret on her head, which she's rarely seen without.
* SmartPeoplePlayChess: She's among the most intelligent characters in the series and she's often seen playing chess.
* SmugSmiler: She almost never takes her arrogant smile off her face.
* VillainousCrush: She seems to have an attraction for Ayanokouji, who is her enemy.
* WorthyOpponent: She considers Ayanokouji as an opponent she would like to bring down with everything she has.
* {{Yandere}}: Shows shades of this in a short story from her perspective. [[spoiler:She apparently always dreams about Ayanokouji, thinks about him all the time, and expresses a desire to make him hers (whether that's romantically, or literally is a bit ambiguous). She also internally mentions how she doesn't care about Class A's position at all, only caring about how she can directly defeat Ayanokouji to fulfill his wish.]]

[[folder:Masumi Kamuro]]
!!Masumi Kamuro
!!!'''Voiced by:''' Creator/AyaneSakura (Japanese), Creator/JeannieTirado (English)[[labelnote: Foreign [=VAs=]]]María García (Latin American Spanish), Justine Berger (French)[[/labelnote]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/masumi_kamuro_anime.png]]

A student who acts as the right-hand woman for Arisu.

* GracefulLoser: She takes [[spoiler:being chosen for expulsion by Arisu]] surprisingly well and rather than convince her to let her stay, Kamuro tells her to find a good replacement for her.
* HonorAmongThieves: She asks Kitoyaka to defend Honami from Arisu's attempts to defame her. Her reason is that Honami also has a past as a shoplifter like her and she doesn't want to see her ruined when Honami is a truly good person.
* MaleGaze: During her first one-on-one conversation with Kiyotaka Ayanokoji while in his room, the anime adaptation features several shots focusing on her butt, thighs, and legs.
* NumberTwo: She's this to [[TheChessmaster Arisu Sakayanagi]], even more so than Hasimoto. It's to the point that Arisu herself recognizes her as her best friend.
* OnlyFriend: Sakayanagi recognizes her as her first and only friend.
* PerpetualFrowner: She's always depicted sporting a surly frown.
* PutOnABus: [[spoiler:She's expelled during her second year.]]
* ReformedCriminal: Sort of. She used to be a habitual shoplifter until Arisu caught her red-handed. Instead of ratting her out, Arisu forced her to become her assistant, giving her so much work to do that she doesn't have time for shoplifting anymore.
* SatelliteCharacter: She's usually seen together with Arisu and follows her orders.
* StalkerWithoutACrush: She stalks students from other classes to gain information for Arisu.
* StickyFingers: She has a bad habit of shoplifting.

[[folder:Masayoshi Hashimoto]]
!!Masayoshi Hashimoto
!!!'''Voiced by:''' Creator/YoheiAzakami (Japanese), Creator/AustinTindle (English)[[labelnote: Foreign [=VAs=]]]Pablo Mejia (Latin American Spanish), Stevie Tomi (French)[[/labelnote]]
[[quoteright:230:https://static.tvtropes.org/pmwiki/pub/images/masayoshi_hashimoto_anime.png]]

A student who has connections with other classes.

* CasanovaWannabe: While trying to deduce the relationship between Kiyotaka Ayanokoji and Kei Karuizawa, he pretends to be interested in her to make it understandable why he'd be prying so much, hitting on her, with her turning him down. He also flirts with Masumi Kamuro, but she's not interested.
* TheLeader: Although he's not the official leader of his group during Mixed Training Camp, Kiyotaka points out in his thoughts that he has incredible leadership skills. He's able to defuse an argument between his teammates with just the right words and making them feel more unified in obtaining their goal.
* TheMole: He's the one who sold the identity of Class A's captain in Deserted Island Special Test to Class C so that Arisu's faction would grow in power, among other examples.
* NumberTwo: To [[TheChessmaster Arisu Sakayanagi]], alongside Kamuro. At least before he [[spoiler:betrayed Class A.]]
* StalkerWithoutACrush: He stalks students from other classes to gain information for Arisu.
* WildCard: He has no real loyalty to anyone other than himself. He always sides with and places his bets on the winning team, in order to always stay on top.

[[folder:Hayato Kitō]]
!!Hayato Kitō
!!!'''Voiced by:''' Yukihiro Nozuyama (Japanese)
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/hayato_kit_ln_2nd_year_arc_visual.png]]

An athletic student who acts as one of Sakayanagi's henchmen.

* AdaptationDyeJob: He has black hair in the light novel. In the anime adaptation, his hair is green instead.
* IconicItem: His gloves, with the gesture of putting them on in a threatening manner as he's about to fight his opponents being equally as iconic part of his character.
* NumberTwo: He acts as this for Arisu, albeit he's seen in this role less often than Kamuro and Hashimoto.
* SatelliteCharacter: Much like Kamuro, he's characterized mostly by his devotion to Arisu Sakayanagi and spends majority of his screentime working for her.
* UndyingLoyalty: On a promotional Akihabara poster, he proclaims that his wish going into his second year is to protect his class with his life.
* YoungerThanHeLooks: He's a high-school student but looks much older.

[[folder:Yahiko Totsuka]]
!!Yahiko Totsuka
!!!'''Voiced by:''' Daisuke Motohashi (Japanese), Creator/OrionPitts (English)[[labelnote: Foreign [=VAs=]]]Juan Carlos Revelo (Latin American Spanish), Sydney Taieb (French), Gabriel Ruivo (Portugese)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/yahiko_totsuka_anime.png]]

A student who acts as the right-hand man for Katsuragi.

* DecoyLeader: Has role of his class's captain during the first island exam. Rather than due to leadership skills, the role was chosen mostly to mislead the other classes and make guessing Class A's leader harder, since most would expect Katsuragi.
* NumberTwo: He acts as this to Kohei Katsuragi, being his most loyal follower, even when Arisu's faction is gaining popularity.
* OnlyFriend: He's the only Class A student shown with a closer bond with Kohei Katsuragi.
* PutOnABus: [[spoiler:He's expelled during the Class Poll special exam as Sakayanagi would rather keep Katsuragi around for his usefulness.]]
* SatelliteCharacter: He's characterized as being Kohei Katsuragi's NumberTwo.
* UndyingLoyalty: He remains as Katsuragi's NumberTwo even after Class A comes third in the first island exam and Arisu's faction grows stronger as a result.

[[folder:Kōji Machida]]
!!Kōji Machida
!!!'''Voiced by:''' Creator/YoshikiNakajima (Japanese), Creator/ChrisGuerrero (English)[[labelnote: Foreign [=VAs=]]]Bastien Bourlé (French), Bernardo Berro (Portugese)[[/labelnote]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/kji_machida_anime.png]]

A student from Class A who suggests remaining silent during meetings of the Cruise Ship Special Test and briefly acts as Kei Karuizawa's bodyguard.

* RomanticFalseLead: Kei Karuizawa flirts with him during the Cruise Ship Special Test so that he'd protect her from her bullies. However, she ends up never pursuing him afterwards and instead developing feelings for Kiyotaka Ayanokouji.
* UndyingLoyalty: Although not to the extent of [[NumberTwo Yahiko Totsuka]], he remains on Kohei Katsuragi's side even after Class A comes third in the first island exam and Arisu's faction grows stronger as a result, as shown when he suggests using a strategy which Katsuragi came up with for the Cruise Ship Special Test.
* WinsByDoingAbsolutelyNothing: He tries to invoke this by suggesting Kohei's idea of remaining silent throughout Cruise Ship Special Test meetings so that there would be no traitor, which would be especially profitable for his class, given that the class hierarchy wouldn't change as a result.

!!Senior Years

[[folder:Manabu Horikita]]
!!Manabu Horikita
!!!'''Voiced by:''' Creator/YuichiroUmehara (Japanese), Creator/DavidMatranga (English)[[labelnote: Foreign [=VAs=]]]David Allende (Latin American Spanish, Seasons 1-2), Daniel Paredes (Latin American Spanish, Season 3), Nicolas Dussaut (French), Lucas Wecker (German), André Sauer (Portuguese)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/manabu_horikita_anime.png]]

Suzune's older brother and the school's student council president. He resents Suzune for being in the lowest class, claiming that her presence threatens his reputation in the student council.

* AcademicAthlete: He's one of the best pupils of the school, and also an excellent sportsman.
* TheAce: The number of students who can compete with him, be it in brains or brawn, is abysmal.
* AloofBigBrother: Manabu is very distant from his sister, as seen by his unamused reaction when Suzune tells him she is in this school to gain his approval. {{Subverted|Trope}} as it turns out he does care for Suzune's growth and well-being, and he helps her when possible. The reason he is so harsh with her is because Suzune stunts her own growth by trying too hard to emulate him. When Suzune finally gets over that in volume 11.5,this trope fades and he gives her a genuine smile along with a SoProudOfYou speech.
* AlwaysSomeoneBetter: To many students, but especially Suzune (who wants to emulate him) and Nagumo (a 2nd-year student set to become his successor). Even after dealing considerable damage to Manabu's class in volume 8, Nagumo remains unable to expel him and anyone in his class before they graduate, something which Nagumo playfully laments in volume 11.5.
* BenevolentBoss: Although stern and stoic, Manabu treats his subordinates in student council (even his personal resenter Nagumo) and his fellow Class 3-A students well, and he never shows anything less than respect for other students unless they are on the verge of breaking rules. He even lets his class take a significant loss in their private and class points to prevent the expulsion of Tachibana in volume 8, because he says his people are united.
* BigBrotherBully: When Ayanokouji first sees Suzune talking to him privately, all he sees and hears is her brother berating her and calling her a fool for choosing the same high school as him. He then holds one of her hands up and seems ready to hit her before Ayanokouji steps in. However, her behavior before the intervention suggests he's beaten her in the past.
* FatalFlaw: He has an admitted one to himself that bothers him throughout his school years: his lack of a true confidant with whom he can share his deepest and personal thoughts. After he graduates in volume 11.5, he tells Kiyotaka not to commit the same mistake.
* GeniusBruiser: He's the initial StudentCouncilPresident, and a fighter who can safely jump off the second floor and stand in the way of two factions of students.
* {{Hunk}}: He has excellent musculature as shown in episode 7 of the anime and in the manga, which only adds to the pluses of his handsome appearance.
* JerkassHasAPoint: For all his insulting of Suzune, she was truly mistaken in thinking isolating herself from her peers proves her independence since her loner act landed her in Class D and she eventually acknowledges that she has to be united with her classmates to go up in class ranks.
* LonelyAtTheTop: To a degree. His monologue in volume 8 gives an impression of this.
* ObliviousToLove: He doesn't seem to be aware of his secretary Tachibana's feelings for him.
* OddFriendship: With Kiyotaka. Despite their first encounter involving violence, Manabu is intrigued by Kiyotaka's hidden talents and treats him with considerably more respect than anyone else, especially compared to his treatment of Suzune. Notably, Manabu offers Kiyotaka a position in the student council, an offer which he rarely ever extends even to 2nd and 3rd-year students. On Kiyotaka's part, he respects Manabu as a legitimate senior and later on expresses willingness to form a give-and-take relationship with him after he steps down from the student council. When Manabu graduates in volume 11.5, Manabu asks Kiyotaka to see him off, and shares several pieces of advice including the importance of a confidant as well as making memories of oneself within the hearts of others, in a true Senpai-Kohai fashion.
* RulesLawyer: Fittingly as a student council president of an academy that lives by this trope, he is perfectly willing to use violence despite the school forbidding it, knowing it cannot be proven conclusively. However, he does respect the rules that the school puts in place to some degree, and disagrees with his successor Nagumo's intent to warp the rules into his own ideal school.
* PutOnABus: He graduates at the end of Kiyotaka's first year.
* SmartPeopleWearGlasses: Manabu wears glasses and he's one of the best academically (and physically) performing students in the series.
* TheStoic: Manabu shows composure in almost all situations, as long as it does not concern his sister.
* StopWorshippingMe: The reason why he's so aloof to his sister is to not want her to emulate him as much. It's justified as not only does it prove detrimental to Suzune's growth, but Manabu clearly has his own issues that would result in his current behavior.
* StudentCouncilPresident: He's the student council president, making him highly respected by the upper echelons of the school student society. He gets replaced by Miyabi Nagumo in the second half of the first-year saga.
* TallDarkAndHandsome: He is fairly tall, has dark hair much like his sister, and is undeniably good-looking. He also definitely fits the aloof image his appearance suggests.
* WorthyOpponent: Sees Kiyotaka as a promising freshman, and genuinely enjoys the rare times when they actually get to compete; Manabu even laughs in contentment when Kiyotaka tells him to give it his all just before their one-on-one running competition.
* WouldHitAGirl: Had Kiyotaka not intervened, Manabu would've physically beaten Suzune. Judging by Suzune's reaction, he had done so in the past whenever she tried to emulate him.

[[folder:Akane Tachibana]]
!!Akane Tachibana
!!!'''Voiced by:''' Creator/KonomiKohara (Japanese), Creator/ApphiaYu (English)[[labelnote: Foreign [=VAs=]]]Lion Ollivier (Latin American Spanish), Clotilde Verry (French), Mari Haruno (Portuguese)[[/labelnote]]
[[quoteright:160:https://static.tvtropes.org/pmwiki/pub/images/akane_tachibana_anime.png]]

The Student Council Secretary, who is seen with the school's Student Council President Manabu and almost all the time has feelings for him.

* CannotSpitItOut: She's kept her feelings for Manabu a secret throughout their three years at school.
* CurtainsMatchTheWindows: She has purple hair and eyes.
* HeIsNotMyBoyfriend: She outright denies being Manabu's girlfriend while being too flustered by the question.
* NumberTwo: She acts as this for Manabu Horikita.
* PutOnABus: While she manages to avoid actually being expelled thanks to Manabu asking their classmates to use their points to save her, she still leaves the story regardless due to graduating at the end of Kiyotaka's first year.
* SatelliteCharacter: She's rarely seen away from Manabu's side and her characterization revolves around her devotion to him.
* TheScapegoat: She's blamed for her group failing to pass the Mixed Training Camp and therefore chosen for expulsion, all as a part of Nagumo's plan to screw over Manabu.
* SubordinateExcuse: She has an obvious crush on Manabu, which is the main reason she loyally serves him as his main underling.
* TargetedToHurtTheHero: Miyabi Nagumo engineers a plan to get Akane expelled during the Mixed Training Camp, just to hurt Manabu by making him lose his closest ally. Manabu has to sacrifice most of his class' points to save her from expulsion, which also works in Nagumo's favor.

[[folder:Miyabi Nagumo]]
!!Miyabi Nagumo
!!!'''Voiced by:''' Creator/SomaSaito (Japanese), Creator/NazeehTarsha (English)[[labelnote: Foreign [=VAs=]]]Eduardo Martinez (Latin American Spanish), Sébastien Baulain (French), Tom Sielemann (German)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/miyabi_nagumo_anime.png]]

A 2nd year Class A student who succeeds Manabu Horikita as the Student Council President.

* EvilIsPetty: His method for trying to get Kiyotaka's attention is to have the third years stop and stare at him whenever he's around. While it is certainly an uncomfortable position to be in for most people, Kiyotaka is at worst annoyed by it.
* HateSink: He's a major antagonist, rules the school as a tyrant, and his strategies involve SadisticChoice and/or outright expulsions.
* AnOfferYouCantRefuse: Nagumo tries to make a deal with Honami to provide her with 4,043,019 private points. In exchange, Honami would have to date Nagumo. It was done to make sure Honami had enough points (20,000,000) so that she would not have to sacrifice a person to be expelled in the Class Poll special exam.
* SadisticChoice: His goal in the mountain training exam was to force one on Manabu. He intentionally has his underling, who served as leader of a group, underperform and designate Akane, Manabu's close confidant, as the group's weak link so that both of them would be expelled. This forces Manabu to choose between losing Akane or using up most of his class' points to prevent the expulsion and affect their standing. [[BenevolentBoss Manabu]] chooses the latter, declaring that he and his class will climb back up.
* ScrewTheRulesIHaveMoney: Ayanakoji speculates that he was able to talk his underling into a TakingYouWithMe gambit by offering to pool he and his associates points to prevent her from actually being expelled.
* StudentCouncilPresident: He takes the torch after Manabu Horikita.
* TargetedToHurtTheHero: This is what he does to try and challenge Manabu and later, Kiyotaka. Nagumo is willing to threaten to expel his "rival's" closest allies in order to draw them out.
* TyrantTakesTheHelm: Whereas Manabu was more of a ReasonableAuthorityFigure, Nagumo rules the student council through an iron fist and expels anyone who tries to oppose him.
* UnknownRival: Nagumo constantly tries to force Manabu into a showdown with him, but Manabu sees him as a nuisance rather than the WorthyOpponent Nagumo wants to be seen as. After Manabu graduates, this behavior extends to Kiyotaka.
* VillainWithGoodPublicity: He leads the school with an iron fist but has his entire grade united as his monolith. {{Downplayed|Trope}} in that there are still select few known exceptions and students outside of his grade don't tend to view him in high regard. It may also be assumed that some students are only on his side because he had promised to hold a lottery to graduate from Class A, randomly selecting students who paid for the chance with their private points.

[[folder:Nazuna Asahina]]
!!Nazuna Asahina
!!!'''Voiced by:''' Creator/SoraAmamiya (Japanese), Trisha Mellon (English)[[labelnote: Foreign [=VAs=]]]Vanessa Olea (Latin American Spanish)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/nazuna_asahina_anime.png]]

A female student from 2nd year Class A. She is close to Miyabi Nagumo, but unlike her fellow second years, she does not idolize him despite being in the same class.

* FlowersOfFemininity: She's a GirlyGirl wearing a sunflower hairpin on the right side of her hair.
* IconicItem: Her amulet, which she lost during Mixed Training Camp, allowing her to meet Ayanokoji.
* MsFanservice: She's shown in a bikini on one of the illustrations in Volume 3 of Year 2, exposing her well-developed figure.
* SexySweaterGirl: She wears a form-fitting pink sweater over her school uniform, accentuating her breasts.
* SpannerInTheWorks: She's the one who informs Kiyotaka Ayanokoji that Honami Ichinose intends to let Miyabi Nagumo date her in exchange for enough private points to buy an expelled student back, which allows Kiyotaka to prepare an alternative for her by making a deal with Ryuen's supporters instead, allowing to prevent the expulsions of both Ryuuen and Kanzaki. {{Downplayed|Trope}} in that he suspected that was her course of action to begin with.

!!Introduced in Year 2

[[folder:Ichika Amasawa]]
!!Ichika Amasawa
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/ichika_amasawa_ln_visual.png]]

A freshman in Class 1-A with great level of admiration for Kiyotaka Ayanokouji.

* ActionGirl: During the Uninhabited Island Exam, she's able to hold her own in a fight with both Mio Ibuki and Suzune Horikita, all the while heavily injured.
* TheChessmaster: She purposefully buys a specific knife, which she gives to Kiyotaka to use while cooking for her, so that he could recognize it and figure out that Kazuomi Housen would try to expel him by [[FallGuy framing him]] after stabbing himself with it, [[SpannerInTheWorks thus successfully preventing Housen's scheme]] before he could do so.
* CuteBruiser: She looks like a mere cute girl, but she's also a skilled fighter.
* FieryRedhead: She has dark reddish hair and an energetic personality.
* GirlishPigtails: She's a teenage girl whose hair is tied into twin tails, fitting her mischievous and boisterous personality.
* HeroWorshipper: Her respect for Ayanokoji and his skills reaches worship level.
* RaisedInALab: [[spoiler:She's a student from the fifth generation of White Room, the facility meant to rigorously teach children so that they become geniuses.]]
* TheTease: She often teases and flirts with Ayanokoji.
* WalkingSpoiler: It's hard to talk about her without mentioning she's [[spoiler:the other student from White Room.]]

[[folder:Kyō Ishigami]]
!!Kyō Ishigami
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kyo_ishigami_light_novel.jpg]]

A freshman in Class 1-A who gave Kiyotaka a mysterious call.

* AthleticallyChallenged: His physical evaluation is at D- (25), exactly the same as Airi Sakura and [[GeniusCripple Arisu Sakayanagi]].
* ConnectedAllAlong: He got to know Arisu Sakayanagi and Atsuomi Ayanokouji at social gatherings of the rich.
* EarlyBirdCameo: He makes his debut in Kiyotaka's second year, but he's the one who [[spoiler:gave him a mysterious call]] all the way back in his first year.
* HeroWorshipper: After meeting him on social gatherings, he developed admiration for Atsuomi Ayanokoji, Kiyotaka's father.
* PerpetualFrowner: His only illustrations so far show him frowning.
* TheSmartGuy: His academic evaluation is at A (95), which is the highest known evaluation in his grade and surpasses even Takuya Yagami, [[spoiler:TheAce from the White Room.]]
* SpearCounterpart: He shares many similarities with Arisu Sakayanagi, with both being an authority figure in their grade's Class A, both having a case of ConnectedAllAlong, and both being incredibly skilled academically but having the worst known physical evalutation.
* TheStoic: He's only shown serious and not emoting much.
* WildCard: While giving him advice, he describes himself as neither Kiyotaka's foe nor friend.

[[folder:Miki Yamamura]]
!!Miki Yamamura
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/miki_yamamura_ln.png]]

A girl in Arisu Sakayanagi's Class A who doesn't express herself much. She ends up in Kiyotaka's group during the school trip to Hokkaido as well as during Exchange Meeting training camp.

* AdaptationalEarlyAppearance: In the light novel, she debuts during Volume 4.5 of Year 2. However, in the anime adaptation, she has an EarlyBirdCameo in Episode 8 of Season 3 in the scene of Class A's Class Poll result, which is back in the first year.
* StalkerWithoutACrush: Arisu Sakayanagi orders her to follow and keep an eye on Ichika Amasawa's actions in Volume 4.5 of Year 2.
* TheStoic: She doesn't express herself much.

[[folder:Ai Morishita]]
!!Ai Morishita
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/ai_morishita_ln.png]]

A sleepy girl in Arisu Sakayanagi's Class A who has a crush on Masayoshi Hashimoto. She ends up in Kiyotaka's group during Exchange Meeting training camp.

* {{Sleepyhead}}: Kiyotaka wonders how a girl like her is able to sleep peacefully on a bench.

[[folder:Kōsei Sanada]]
!!Kōsei Sanada
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/ksei_sanada_ln.png]]

A boy with glasses in Arisu Sakayanagi's Class A.

* SmartPeopleWearGlasses: He wears glasses and, as implied by him being a Class A student, he's good academically.

!B-Class Students
[[folder:Honami Ichinose]]
!!Honami Ichinose
!!!'''Voiced by:''' Creator/NaoTouyama (Japanese), Creator/KristiRothrock (English)[[labelnote: Foreign [=VAs=]]]Yetzary Olcort (Latin American Spanish), Karl-Line Heller (French), Özge Kayalar (German), Amanda Tavares (Portuguese)[[/labelnote]]
[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/honami_ichinose_anime.png]]

The Class Representative of Class-B, and a very kind, helpful, and selfless individual. She is one of the top students in her class and is very much admired and respected.

* AdaptationDyeJob: Her hair is pink in the light novel's colored art, but the anime makes her a peach blonde instead.
* AllLovingHero: She doesn't have a mean bone in her body, is very selfless and helpful, and just wants to maintain peace between higher and lower-ranked classes.
* BeingGoodSucks: An unfortunate consequence of her good nature in the later volumes is that Ichinose can't make hard choices or use underhanded tricks to get ahead of the other classes. As the gap between Class B, Class C, and Class D closes [[spoiler: Kanzaki]] begins to criticize her for it.
* BelatedLoveEpiphany: [[spoiler:By the time she realizes her deep feelings for Kiyotaka by the 2nd year Island Arc, he is already dating Kei. Despite trying to give up on him at first, she eventually just accepts that she still loves him, and declares her intent to win him over]].
* BuxomBeautyStandard: Her large breasts attract a lot of attention from guys and envy from girls, namely Suzune.
* CatharticCrying: Turns out the reason why she could stand up to Arisu's accusations and confess her past shoplifting crime to her classmates was because Kiyotaka had already confronted her about her past guilt beforehand, causing her to break down in tears and let out everything she had been holding back since the rumours of her being a criminal started.
* ClassPrincess: She's the top student of her class and is admired and respected by everyone, while also being genuinely kind and helpful to others.
* DudeMagnet: She's noted to be popular, which incurs Suzune's jealousy.
* EvenTheGirlsWantHer: One of her classmates even says she loves her.
* ExtremeDoormat: She wants to avoid conflict with other classes as much as possible. Even when Arisu starts spreading vile rumors about her and forces her to face terrible harassment, Honami refuses to do anything to defend her innocence and tries to endure the slander to not drag her class into a conflict. Later on, when Ryuen beats her class in an exam by using methods that range from reckless to illegal, she refuses to complain about it to the school, preferring to view the defeat as her own fault for failing to predict and adapt to his tactics. Ryuen later admits that he took Honami being too much of "a goody two-shoes" into account when coming up with the strategy.
* {{Foil}}:
** To Ayanokouji. She has an immensely good heart, is genuinely altruistic and people-oriented, and loves helping others, while Ayanokouji is purely task-oriented: he ''does'' help others, but only for personal gain, and has no qualms using them as tools.
** To Kushida, who really is a BitchInSheepsClothing, as her nature isn't actually kind-hearted, but actually pretty selfish and manipulative.
** To Ryuen, who is her exact opposite, being a selfish, power-hungry, petty, violent and vicious {{Jerkass}}. Honami is humble, selfless, a pacifist and a total sweetheart.
* GenkiGirl: She's a ray of sunshine with a cheerful, optimistic, and energetic personality.
* GoodIsNotDumb: Definitely not. Her kind heart should not be mistaken for her being a pushover or TheDitz, and her personality isn't weak by any means.
* HairOfGoldHeartOfGold: She has peach blonde hair in the anime, and is likely the most kind-hearted and selfless character in the series.
* TheHeart: She keeps her class united, being very intended in making sure they all graduate together, and they all trust her with their points.
* {{Hikikomori}}: In her last year of middle school, she stopped going to school and shut herself in her bedroom for six months out of shame of having betrayed her mother's trust when she stole a hairclip for her younger sister. She came out of her reclusion when her mother asked her to go to high school and start over.
* HumbleHero: Despite her skills, she's not boastful and arrogant at all.
* IdealistVsPragmatist: The Idealist to Kanzaki's Pragmatist. Honami refuses to use dirty tricks or to allow her classmates to be expelled, even if it means having to constantly fight an uphill battle.
* KnightInSourArmor: [[spoiler:She eventually has to concede that her idealistic methods simply aren't getting results, and adopts a [[IDidWhatIHadtoDo somewhat more pragmatic attitude]], while still holding on to her refusal to let anyone in her class be expelled.]]
* MsFanservice: She's possibly the most well-developed girl in her grade and was shown wearing a bikini, as well as just her panties while getting a massage. She's also shown sunbathing with her top untied on a [[https://you-zitsu.fandom.com/wiki/File:BD_DVD_Season_2_Kadokawa_Store_bonus.jpg Blu-ray/DVD Season 2 Kadokawa store bonus]] and outright naked, just barely covered with steam, on the [[https://you-zitsu.fandom.com/wiki/File:Tape_J_080.jpg illustration for the "In the Changing Room" short story]] for Volume 8 of Year 2..
* MyGreatestFailure: When she was in middle school, her mother was hospitalized due to overworking herself trying to save money for her younger sister's birthday gift. Honami then decided to try and get the present herself, but her sister had asked for a pricey limited edition hairclip that she couldn't possibly buy. Out of desperation, Honami stole the hairclip and gave it to her sister, but her mother realized what she had done and made her go back to the store to return it. While the shop owners forgave Honami and didn't press charges against her, she still felt guilty and ashamed for betraying her mother's and sister's trust in her. To start over and hopefully earn back her family's trust, she came to the Advanced Nurturing High School and tried to be a good leader for Class B. She begins to get over her feelings of guilt when she confesses her crime to her classmates, and they don't blame her and even sympathize with her.
* NiceGirl: She's always helpful to others and has the best intentions at heart.
* RoseHairedSweetie: She's pink-haired in the light novels (and a peach blonde in the anime). She's the sweetest girl in the cast, being the only one who's outright kind without a mean streak.
* SmarterThanYouLook: Proves herself to be much more clever than she appears at first glance, and is also a good student.
* TheTease: She likes to flirt with Kiyotaka.
* TokenGoodTeammate: Out of the main characters in the series, Honami is definitely the kindest, and doesn't have antiheroic qualities.
* UnknowinglyInLove: She starts developing romantic feelings for Kitoyaka as of volume 9. Later at volume 10, these feelings become more evident, but she's still oblivious about it.
* WideEyedIdealist: Honami wants to create a peaceful and friendly environment in her class, and she's determined to make sure they all graduate together without letting anyone get expelled. Unfortunately, her ideals are frequently challenged by the school's harsh system that ''encourages'' students who underperform or are a hindrance to their classmates to be expelled, and force the class to sacrifice a high number of points to protect their classmates from expulsion.

[[folder:Ryūji Kanzaki]]
!!Ryūji Kanzaki
!!!'''Voiced by:''' Akihisa Wakayama (Japanese), Creator/RiccoFajardo (English)[[labelnote: Foreign [=VAs=]]]Alberto Bernal (Latin American Spanish), Jessy Dubuis (French), Sebastian Borucki (German), Fernando Mendonça (Portuguese)[[/labelnote]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/ryuuji_kanzaki_anime.png]]

One of the class representatives of Class 1-B.

* TheAce: He's essentially this to Class B, possessing the highest intellect and reflexes in his class.
* DemotedToExtra: The anime adaptation has cut out several of his moments, only giving him a few scenes of being Ichinose's NumberTwo before stepping up his game.
* IdealistVsPragmatist: The Pragmatist to Honami's Idealist. Following repeated failures, and with some encouragement from [[spoiler: Kiyotaka]], Kanzaki eventually [[spoiler:creates an opposition faction to Ichinose, trying to change the class's mindset to be more competitive]].
* LetsGetDangerous: After being mocked for spending the entire first year as Ichinose's NumberTwo, he promises Ryuen that he'll take his own approach to fight an enemy like him.
* NumberTwo: Appears to be Ichinose's closest ally.
* WellIntentionedExtremist: Kanzaki is loyal to his class and wants them to succeed in reaching class A, even if it means [[spoiler: expelling someone out to get class points.]]

[[folder:Chihiro Shiranami]]
!!Chihiro Shiranami
!!!'''Voiced by:''' Nao Shiraki (Japanese), Kristin Sutton (English)[[labelnote: Foreign [=VAs=]]] Ginette Zavala (Latin American Spanish), Clotilde Verry/Khaoula Aaba (French), Carolina Iecker (Portuguese)[[/labelnote]]
[[quoteright:110:https://static.tvtropes.org/pmwiki/pub/images/chihiro_shiranami_swimsuit.png]]

A student from Class B who has a crush on Honami Ichinose.

* FlowersOfFemininity: She's a GirlyGirl wearing a flower hairpin on the right side of her hair.
* HopelessSuitor: She has a crush on her class's representative, Honami Ichinose, but ends up rejected by her. [[spoiler: A short story during the deserted island exam suggests that she hasn't given up.]]
* IncompatibleOrientation: Honami doesn't return her romantic attraction because she likes guys, as seen in her crush on Kiyotaka.
* MsFanservice: She wears a bikini in the PoolEpisode, showing her well-developed figure.
* SatelliteCharacter: Due to her smaller role, she's characterized by her [[IncompatibleOrientation one-sided attraction]] to Ichinose.
* SmallRoleBigImpact: She's only relevant to the plot when Honami has to reject her. However, her crush on Ichinose made way for Kiyotaka Ayanokoji to interact with her class representative more, with Ichinose asking him on how to gently turn her down and thus feeling in debt towards him, allowing for the formation of TheAlliance between Class B and D, as well as setting a path for Ichinose and Ayanokoji deepening their bond.
* TokenMinority: She's the only girl known to be romantically interested in girls.