Line #50 Manga/DetectiveSchoolQ


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10	[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/detective_school_q.png]]
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12	''Detective School Q'' or ''Tantei Gakuen Q'' is a 22 volume manga by Seimaru Amagi (who also wrote ''Manga/TheKindaichiCaseFiles'') that ran in ''[[Magazine/ShonenMagazine Weekly Shonen Magazine]]'' from 2001 to 2005. It was adapted into television in 2003, albeit incompletely, spanning a mere forty-five episodes covering only the beginning of the manga, leaving out most of the plot. Later, the series was also adapted into a live action drama. It was also followed in 2007 by a one-volume manga called Tantei Gakuen Q Premium, which is a sequel to the original one.
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14	This story involves a group of students called the Q class of Dan Detective School, founded by RetiredBadass Detective Morihiko Dan, the best detective in Japan. These students, led by Kyū Renjō, form a FiveManBand and are tasked to solve seemingly unsolvable mysteries, as well as to battle a criminal organization led by Pluto who had a past with Morihiko Dan and a mysterious connection with one of the students...
15	----
16	!!This work provides examples of:
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18	* AcquaintedInRealLife: In one arc, the killer believed that this was happening between himself and the prettiest girl in his class, as the individual he'd been communicating with had her name spelled backward. When that girl vanished immediately after the online persona said she'd kill herself on account of persistent bullying, he tracked down the bully and killed him, only to find out afterward that his online girlfriend had actually been a different girl in his class who only "killed" her online persona by quitting the account.
19	* ArcWord: Meikyuu (labyrinth). Kyu's catchphrase, "If a detective gives up, the case won't be solved!" is written as "tantei wa akirametara, jiken wa ''meikyuu''irinanda!"[[note]]meikyuuiri itself means unsolvable, but it contains for labyrinth[[/note]]. Outside the catchphrase, it's usually thrown a few times as a mystery analogy. The word is also included in [[spoiler:the last keyword to fully unlock Ryu's memory as the legitimate descendant of Takumi Kuzuryu]].
20	* ActionGirl: Shino and Yukihira, though each gets hit with the DistressBall at least once.
21	* ACupAngst: Sakurako Yukihira is lacking in the mammary department, much to her displeasure.
22	* AdaptationNameChange: Kiriyuu family, the family in Setsugekka Murder Case is renamed into "Fukunaga" in the live-action adaptation. Thus the family members' name all become Ukon Fukunaga, Samon Fukunaga, Tomoe Fukunaga and Hazuki Fukunaga.
23	** Kuzuryu Takumi becomes [[spoiler:Amakusa]] Takumi in live-action, and becomes [[spoiler:Ryu's father]].
24	* AdaptationDistillation: Setsugekka Murder Case's content is heavily reduced when adapted into live action. The Setsugekka element itself is nonexistent, two of Ukon's step-sisters are missing, and [[spoiler:Samon Fukunaga's actually not paralyzed instead of only having motor functions on his upper body, thus reducing the complexity of the case]].
25	* AdaptationalHeroism: [[spoiler:Kaoru Ichinose's brothers']] motive in killing the medium was a bit more noble in the anime than in the manga. The anime said they committed the murder because they thought the spirit medium was their aunt's (who underwent an AdaptationalVillainy) accomplice in her scheme to get the family fortune, while in the manga it was implied they didn't want any content in their late mother's will that was advantageous to them to be revealed.
26	* AdaptedOut: Since the anime ended where the story truly began in the manga, lots of character were not adapted into the movie; Cerberus, Sir Charon (who was possibly replaced by Sir Anubis in anime), Thanatos, even King Hades himself didn't appear.
27	** Some case-specific characters also don't appear in anime. One example includes the village chief of Jinchu village. The owner of inn the casts stay in instead is Natsumi, who is the village chief's granddaughter in the manga.
28	* AdrenalineMakeover: Subverted. [[spoiler: Kuniko]] drastically changed her looks between a ''very'' traumatic incident and her arrival to Class A, but it takes her ''much'' more than that to fully blossom.
29	* AffablyEvil: Cerberus and his replacement character in the anime Anubis.
30	* BecomingTheMask: [[spoiler: Ryu]] was supposed to be TheMole, but [[spoiler: he grew fond of Kyuu, Megu, Kazuma and Kinta for real]] as time passed. This is anime-only.
31	* BerserkButton:
32	** Please don't comment on Megu's panties.
33	** And in the case of her older sister [[NeatFreak Akane]], '''don't''' mess up with anything in the Minami household.
34	* BreakTheCutie: More than one case is a painful, slow, tear-jerking breaking process for either victims, {{Sympathetic Murderer}}s or witnesses, the top examples being [[spoiler: Miyo Fuuma, the three Ichinose siblings, Kuniko Tooya, Mitsuru Hoshou and both her boyfriend Manabu and her half-sister Arisa, Midori Tachikawa, and Yuri Hitsuji]]. And in-story, [[spoiler: Ryu]] gets progressively broken as he develops more.
35	* BrownNote: The "Banquet of Evil" (Devil's Trill in manga adaptation) violin solo drives a violinist into increasing insanity as soon as he hears it, and it's mentioned that a mysterious person is forcing three other people to hear it as well through cellphone calls. The reason? [[spoiler: It was the favorite musical piece of a brilliant player who was handicapped [[DrivenToSuicide and killed herself]]... after a horrible trap staged by the other four (it was actually three because her boyfriend [[WhatCouldPossiblyGoWrong has never considered that this could lead to tragedy]]). [[LoveMakesYouEvil Who end up murdered]] [[SympatheticMurderer by the girl's fellow violinist and the aforementioned boyfriend]]. And had he not done it, they would've died at the hands of the girl's half-sister (who originally wanted to kill the boyfriend because she thought that he was also in on their plan before the reveal).]]
36	* TheCameo: You can find a cameo of [[Manga/TheKindaichiCaseFiles Kindaichi Hajime]] among the wave of people taking the exam in the first chapter. The Reverse also happens in Kindaichi's "Alchemy Murder Case"
37	* TheChessmaster: King Hades is the biggest example in this manga, in order to make [[spoiler: Ryu]] his successor with the finale as the proof of his ability. [[spoiler: By the concept of "losing hope after betrayal", King Hades purposely enrolled Ryu into DDS to gain TrueCompanions who, at least it's what King Hades think, will doubt Ryu when his identity as grandson of DDS's ArchEnemy comes out. To increase the doubt, he created a murder plan involving Ryu's unlocked past about his dead father (who's not really dead; it's actually one of his henchmen's disguise) and former employees who became the victims. In each murder, traces of Ryu's presence in the crime scene would be present, further driving people into the conclusion that Ryu indeed killed them. The truth is, those people died from them ''killing one another with personal motives King Hades planted for years''.]] The plan was so crazy, yet plausible. The only miscalculation he made is everything about Kyu.
38	* ChickMagnet: Ryu. Older women, young girls and ''little girls'' blush at the sight of him.
39	* TheChikan: A whole episode centers on this type of delinquent. One of them attacks Kuniko in a train, and once she recovers from the incoming HeroicBSOD, Yukihira and Megu help her catch him.
40	* CollectorOfTheStrange: Onikobe Dokuro, head of DDS research centre, collects two thousand wooden-carved ''skulls based on murder victims''. One of them even has a ribbon and is called "Elizabeth".
41	* CruelAndUnusualDeath: One of the victims in "Murder of Setsugekka painting" was locked in a room that had been previously used as a freezing room from the outside while the temperature was lowered gradually. The shots after that showed her fingers bleeding and the door full of blood and scratch marks, depicting her desperation to get out alive.
42	* CutShort: The anime faithfully followed the manga and was on track towards greatness when it was cancelled at a point in the manga where the ''real story'' was hardly beginning to unfold, and we mean ''almost 2/3 of the plot'', leaving virtually [[LeftHanging everything in the air]], and throwing in a GainaxEnding on top of that.
43	* CuteBruiser: Kuniko, when she stops cowering after someone else's back.
44	* DarkActionGirl: [[spoiler: Kaori, a rather skilled knife fighter and MasterOfDisguise]]
45	* DeathByAdaptation: In the manga, Kaoru Ichinose's aunt Sachiyo survives the case she was featured in. It's not the case in anime.
46	* DisguisedInDrag: Ryu and Tooya was tasked to infiltrate a school regarding a vandalism which may turn into a murder. Unfortunately, since the target school is an all-female school, Ryu was forced to do a total makeover to become a new transfer student.
47	** Interestingly, the timing was close to a school play and Ryu is forced to play the prince role in said play, meaning ''he was disguised as a girl who plays a role of a man!''
48	* TheDogWasTheMastermind: There's an epic "Whaaaat!?" moment when the high priest behind ''four murder cases'' in Kamaikakushi village is revealed to be [[spoiler: the cute and innocent Fuuma Mio, who later turns out to be another AntiVillain as a result of MoreThanMindControl that [[BreakTheCutie Broke the Cutie]].]]
49	* {{Expy}}: Kintaro to Kindaichi Hajime; he even has a similar CatchPhrase. Also Cerberus to Yoichi Takato, both refer to a perfectly done crime as "art with perfect beauty" and doesn't take it well when plans they've made get ruined and will find out who ruined their plan.
50	* FakeAlibi: One episode had a killer try to use some of the main characters as her alibi: [[spoiler: She talked with them on the train, then got off the train, drove to the location of her victim, killed him, and then drove to a later train station (the tracks took a big arc, so it was possible for someone with a fast car taking a direct route from the station at the start of the arc to the station at the end of it to beat the train there), then talk to the main characters again, presenting the illusion that she'd been on the train the entire time. It didn't work]].
51	* FakeMystery: In the "Tragedy of Kirisaki Island" arc, the students of the DDS are brought to a secluded island as a final exam to make it into the top "Q" (qualified) class. The students were supposed to solve a serial murder case that happened on the island 50 years ago, and the ones who demonstrate the best deductive skills will be admitted to the Q class.[[spoiler: However, things go wrong when an intruder snuck onto the island and murdered several students students to repeat that past tragedy. By the end of the case, the five main characters reveal that the murder has been staged by the school staff (the "murdered" students were those who had already failed to qualify for the Q class), and that this was the ''true'' qualifying test for the rest.]]
52	* FakingTheDead: [[spoiler: The businesswoman Hanayo Ichinose tried this to save her enterprise. She got plastic surgery and returned under a disguise to stop her SmugSnake sister's machinations and check on her three children... and ended up dead because the two eldest didn't recognize her and thought she was the [[SmugSnake Smug Snake's]] accomplice, so [[BigSisterInstinct they killed her to protect their baby sister]].]]
53	* FiveManBand: The Q class of Dan's Detective School consists of 5 members, each fulfilling a typical 5MB archetype.
54	** TheLeader: Kyu is the StockShonenHero. He's a very enthusiastic young boy who possesses an incredible passion, determination and intuition to become a detective. His uncanny ability to solve misteries based on just a few hints is balanced by his lack of common sense in pretty much every other area in life. He does, however, have a big heart that's willing to do his best for those around him.
55	** TheLancer: Ryu is Kyu's polar opposite, being very calm and rational, to the point of being seen as cold-hearted. He is almost the complete opposite of Kyu, if not for their shared passion for mysteries and solving cases, and is pretty much the only one that stands as equals with Kyu in terms of detective skills.
56	** TheSmartGuy: Kazuma is a genius hacker who can build complex programs and solve codes despite [[ChildProdigy only being a grade schooler]]. His primary role in the team is to find background information about suspects and other miscellaneous data necessary to solve the case.
57	** TheBigGuy: Kinta is probably the least intellectual of his class, but makes up for his lack of wits by his physical strength, combat abilites and, to a lesser extent, [[TheNoseKnows his sharp sense of smell]].
58	** {{The Smurfette\|Principle}}: Megu is the sole female of the group, and while her PhotographicMemory is very helpful to solve the cases they're involved in, she mostly serve to comment on Kyu or Ryu's abilities, or occasionally be the DamselInDistress.
59	* ForcedToWatch: In the BoardingSchool case, [[PhotographicMemory Megumi]] is kidnapped and then BoundAndGagged, having to helplessly watch as [[spoiler: her masked kidnapper (and the culprit) murders the StudentCouncilPresident.]]
60	* ForgottenFirstMeeting: Despite her photographic memory, Megu forgets that she used to play with [[spoiler:Ryu during her time in Talent Development Research Facility]]. This is all due to [[spoiler:King Hades' hypnosis]].
61	* GoodScarsEvilScars: Hongou-sensei not only has a huge scar on his face, but his hands and arms are covered with knife marks.
62	* GuileHero: All of them, in their own ways. Ryu and Kyu handle the big deductions, Megumi gives emotional support and uses her PhotographicMemory, Kazuma examines stuff and details and Kintarou is StreetSmart as well as SuperSenses that help make him a detail person.
63	* HandicappedBadass: Dan is a GuileHero who's wheelchair-bound and is still a pretty good shot. The manga even shows that [[spoiler: he's the only one who can see through deception of the first murder plan made by Cerberus which tricks ALL Q-class member and successfully catch him]].
64	* HeirToTheDojo: Kuniko, whose family has an Aikido dojo.
65	* HotSpringsEpisode: Two murders happen in onsens. Only one of these mini-arcs has {{fanservice}}, as Kyuu and Kinta first fail to get [[ShowerShy Ryu]] naked in the springs (as he arrives at the male side of the springs with a ModestyTowel) and then [[ThePeepingTom they try]] to [[OutdoorBathPeeping peep]] on a SexySecretary bathing on the other side... and end up [[PervertRevengeMode beaten]] by Megu, whom they get to see in the nude. [[spoiler: The incident is actually plot-relevant, as it drops hints about the murderer - said SexySecretary, and she tried to use it as an alibi but the detectives weren't fooled.]]
66	%%* HypercompetentSidekick: Kerberos.
67	* InnocentlyInsensitive: When Q-class is having lunch at an okonomiyaki place, Ryu says that it's his first time eating at such a place. Megu then remarks that it makes sense as Ryu's upbringing strikes her as being "like a prince". Unbeknownst to anyone else, Kerberos previously referred to Ryu as the prince of [[spoiler: Meiousei/Pluto]] with his position being InTheBlood. Since Ryu finds this fact horrible, he reacts badly to Megu's remark.
68	* ItsNotYouItsMyEnemies: [[spoiler: Satoru had to leave Kyuu and his mom when he started investigating Meiousei/Pluto, only watching them from a distance. The single time he attempted to approach little Kyu directly, he was kidnapped by Meiousei, and Satoru went all PapaWolf on them and singlehandedly got his kid back. A few days later, though, he was killed.]]
69	* JackTheRipoff: [[spoiler: Psychic Murder Case]] is one to a similar case that happened long ago in National Ability Research Facility where Megu and Saburomaru went before joining DDS. While [[spoiler: the murder trick was given by Meiosei, the one who gave the trick to the first and second killers were different members. The first member was able to make the murder unsolvable, but the second member couldn't.]] Ryu even lampshaded it.
70	* KarmaHoudini: Kerberos. As if being MagnificentBastard wasn't enough, he escapes the heroes at the end too.
71	* LockedRoomMystery: This is featured in a lot of cases. The solution generally involves some manner of sealing the room from the inside in some way that can be performed while outside the room or committing the crime from outside the room.
72	* MagicianDetective: Hayato Shiramine is a famous magician who enrolled in Dan Detective School. While he's a minor character since he's in A-class, he shows his his crime-solving ability when he won an analysis duel against [[ChildProdigy Kazuma]][[note]]Although Kazuma here relied too much on his laptop which conveniently ran out of battery during the duel. He could solve the case, but Hayato was faster[[/note]].
73	* ManchurianAgent: [[spoiler: [[TheSyndicate Pluto]] ]] does this all the time to its clients and its own agents as a failsafe. [[spoiler: On the trigger, they'll kill witnesses, or themselves, or go insane...]] it's not pretty.
74	* MasterOfDisguise: DDS teaches its student art of disguise, probably to make them easier in tailing their targets. So far DDS members knowing the art of disguise are Nanami, Tooya, Ryu (via crossdressing [[spoiler: but develops real ones later on in the climax]])
75	** Pretty much every member of Meiousei shown are this. It's sometimes exaggerated since the disguise can't be removed by normal means.
76	* MadnessMantra: [[spoiler: Kaori]]'s "Tartarus... Tartarus... Tartarus..."
77	* MeaningfulName: Lots of them. For starters, Q-class is not based on all the rankings found in normal DDS class (from A to D). It was personally selected by Dan Morihiko as "Q"ualified people who will be his successor.
78	** Case-related wise, Jinchu village's name, where "Mayahime Legend Murder Case" occurs, can also be read as "Hitobashira (Human Pillar)" following the village's tradition to burn one of its people on a stake to repel bad luck. Yes, all of the murders happened there has a burn-theme.
79	** One of the first cases Q-class faces is a mysterious disappearance in Kamikakushi Village. In Japan, Kamikakushi means "Spirited away". Almost all of the cases happened related to people missing mysteriously.
80	* {{Meitantei}}: The main genre. Dan Morihiko is also considered one, being one of the few detectives with license to wield guns.
81	* MistakenForRomance: Discussed for laughs in the sequel, where Kyu, Kazuma and Kinta must compete against Ryu and Megumi to solve a case. While the former group runs wanders around town to find clues, the latter heads to a cafe to discuss the case. Kazuma mentions that Ryu and Megu has "couple vibes", to Kyu's dismay.
82	* MoreThanMindControl: Apparently, what made [[spoiler: Mio Fuuma]] a murderer.
83	** Also applied on several culprits, courtesy of [[spoiler: Pluto itself]]. Basically, [[spoiler: they give you the means to carry your revenge and keep an agent close as a monitor, but when said revenge is foiled, they force you to either kill yourself or murder the person who blows your cover. And if a Meiousei agent is captured by the police, another will activate some sort of trigger that will make them kill themselves as well.]]
84	* MundaneLuxury: Due to his strictly controlled upbringing, Ryu has never been exposed to certain things that are commonplace to his classmates and has strong positive reactions to things like the taste of natto (an extremely common food in Japan).
85	* MurderDotCom: One of the killers frames their murders like this, all as part of their scheme.
86	* MutualKill: The truth behind [[spoiler:the Seiryuukan Houses Murders - after manipulating the four former housekeeps of the Amakusa household into having motives to kill each other and eventually getting them all to be Pluto clients, King Hades manipulates all four of them to kill each other in sequence in such a way that it looks like the workings of a singular serial killer.]]
87	* MyGodWhatHaveIDone: Besides the ''many'' cases where the murderer of a case realizes how big a mistake killing the victim was, Kinta gets a nasty bout of this trope when he makes Kyu switch cleaning shifts with him and this leads to him and Megu going missing and [[spoiler: having a [[AnimalAssassin highly venomous snake]] sicked on them by a Pluto agent, nearly killing Megu.]]
88	* NotBloodSiblings: A plot point in Setsugekka murder case is a small ShipTease between Tomoe and Ukon Kiriyu who are step-siblings and other characters who lightly tease them about it. Tomoe is a child not related to Ukon's stepmother because she also was a stepchild to her current mother. [[spoiler:Too bad it fell apart when she's revealed to be the murderer in the case and tried to stab (Nanami disguised as) Ukon for [[YouKnowTooMuch knowing too much about the murderer]].]]
89	* ObfuscatingStupidity: Ukon acts like a child around the house despite showing early signs of great intellect during elementary school, which is quickly hinted to readers in early case chapters. [[spoiler:It's because he doesn't trust any of his step-sibling, suspecting some (if not all) of them as the cause of his father's paralysis. Showing any signs of cognitive awareness is a way to divert suspicions.]]
90	* OpenMindedParent: Kyuu's [[NoNameGiven mother]], in regards to his career choice of being a detective.
91	* PhotographicMemory: Megu's main ability. [[spoiler:Also, Shino's deceased UnluckyChildhoodFriend Masami, whose murder is resolved by Class Q.]]
92	* PluckyGirl: Megu, Yukihira, Shino Katagiri. Kuniko wants to become one, but she still has a long way to go.
93	* PrisonEpisode: Miss Kaori's interrogation and [[spoiler:Cerberus]]'s imprisonment, [[spoiler:momentarily]].
94	** GreatEscape: The reason why [[spoiler:Cerberus]]'s imprisonment is [[spoiler:momentary]]. A villainous OneManArmy version.
95	* PsychoLesbian: Kuroki Ranko in "Bloody Flower Garden" (manga exclusive). Despite being a teacher in a religious girl-only school, she doesn't really hide her homosexual tendencies, as evidenced by her hitting on a crossdressing Ryu the first time she arrives at the teacher's lounge and the rumors circulating among students about how she'd try to show a scar on her cleavage to students she deemed pretty. [[spoiler:The more depraved part of this trope comes when one girl rejected her advances, thus she decided to torment her everyday through bullying.]]
96	* RecursiveCrossdressing: In one case, Ryu is forced to disguise as a girl to infiltrate an [[OneGenderSchool all-girl school]]. Upon arrival, he catches the eye of the drama club members, who forces him to play the role of PrinceCharming in their upcoming show.
97	* RedHerring: Oh, lots and '''''lots''''' of them. [[spoiler: One of the most famous cases's trick was about the real killer ''making someone agree to be one'' while said person becoming target themselves. Then after the red herring's "suicide", an apparent conversation between Meiosei member and one of the suspects also became ''one''. If one is observant, you can see from the contents that there are [[SpoiledByTheFormat still several chapters left]].]]
98	* RedOniBlueOni: Nanami and Tatsumi.
99	* RhymeThemeNaming: The BigBad and BigGood of the series is respectively named Hoshihiko and Morihiko. Their similarities do not end there, as they are both known as TheAce at their school.
100	* RunningGag: Kyu frequently rushes to class believing that he's late, even though his watch is 30 minutes fast. When he realises this, he would complain about "falling to the time difference trick", to his friends' exasperation and bemusement.
101	* ScoobyDooHoax: Many of the murders, whether they have Meiosei's interference or not, turn out to be this.
102	* SelfMadeOrphan: [[spoiler: Akihiko and Kunihiko Ichinose thought [[KnightTemplarBigBrother they were protecting their little sister Kaoru]] from their SmugSnake aunt Sachiyo by killing her accomplice. Said accomplice was their mom, Hanayo, under a disguise. Whoopsie.]]
103	* SerialKiller: Lots of main cases happened around Q-class are this. Largely subverted in [[spoiler: Kirisaki Island]] because [[spoiler: it was a test to determine whether people selected by Morihiko Dan are suitable to be member of Q-class thus no one was killed]] and [[spoiler: Seiryukan Murder Case (manga and live-action only)]] because [[spoiler: the four murders happened were actually separate murders committed by ''all the victims'', courtesy of hypnosis (live-action) or careful planning from King Hades as a plot to make Ryu into his successor.]]
104	* SexySecretary:
105	** Yuri Hitsuji. [[spoiler: Who also happens to be the SympatheticMurderer of the case she's in.]]
106	** Shino Katagiri can be considered as Morihiko Dan's sexy secretary too.
107	* ShipperOnDeck: Megu's CoolBigSis Akane ships Kyuu/Megu.
108	* ShrinkingViolet: Kuniko is very, VERY shy and traumatized.
109	* SmugSnake: Many culprits, but specially Sachiyo Ichinose anime-version.
110	* SnuffFilm: One of the case has this theme. One murder is an edited-and-uploaded type of video while another one is a live footage. [[spoiler: It's mainly for the killer's alibi though, and the second one is not even a real footage.]]
111	* SparedByTheAdaptation: Maya Asabuki dies from a stab wound in the manga. In the anime, her head is hit by a small vase in her dorm room and is revealed to be alive at the end of the case.
112	** The victim of "Train Alibi" minicase, Kenji Taga, ends up surviving instead of dying.
113	** Since the only adapts around half of the manga, a certain character who dies at the manga's last chapter is still alive in the anime. Said character is [[spoiler: Dan Morihiko]].
114	* StoppedClock: Played with, to the point of becoming A RunningGag. Kyu's watch ''will'' stop at when he needs the most outside the case.
115	* TakingTheBullet: When a case ends with Kinta unintentionally provoking a suspect into trying to stab Kyu, Ryu dives in front of his friend.
116	** Nanami also tries this at the manga's climax when [[spoiler:Sir Charon shoots Dan Morihiko. Unfortunately, he fails. However, Dan Morihiko gets better]].
117	* TeamDad: Morihiko Dan, and Tatsumi Hongou is a sterner version. Nanami counts more as BigBrotherMentor due to his closer approach.
118	* TeamMom: Shino Katagiri is a responsible and beautiful woman who helps out the kids more than once.
119	* TeenGenius: Basically those who were enrolled in National Talent Developement Research Facility becomes this once they are teenagers except for several people for different reasons. Case in point for people who are teenagers in the manga's current timeline are Megu with her photographic memory, Fuko Asaba, teen jazz musician playing in New York, Isshiki Haruna and Toru Kumakura who opens internet business together[[spoiler:and Ryu Amakusa]].
120	* ThemeSerialKiller: Murders rely on this trope, following local folklore (Example being Kamikakushi/Spirited away or Hitobashira/Burning people), spirits of the deceased (Houshou Mitsuru's Devil Trill in Imaginary Music Hall), or certain artifacts (Takumi Kuzuryuu's Setsugekka painting).
121	* TitleOfTheDead: Episode 22 "Dinner of the Dead", that deals with the murder of a food connoisseur.
122	* TownWithADarkSecret: Some of the locations Q-class visits contain secrets. Some are somewhat well-known while some other are covered with an equally bizarre quirk. The most notable one is "Hyotan" and its neighboring village "Kamikakushi". [[spoiler: Kamikakushi was long erased from the map by people of Hyotan village and was replaced by one half of Hyotan village due to [[ThePlague an experimental smallpox weapon outbreak]] using a religious cover which worships a God related to disease and disaster. Anyone who discovers this secret will be eliminated by the name of "Kamikakushi" (spirited away)]]
123	* {{Tsundere}}: The Type B Megu is all sweet and light and gentleness, until Kyuu comments on her panties or flirts with other girls. Yukihira is a Type A, quite more competitive and tsuntsun.
124	* UndyingLoyalty: All of the members of Q-class to each other. All of them have been willing to place their lives and reputations on the line for each other. [[spoiler: This ends up being a SpannerInTheWorks against Pluto as their plan to destroy Ryu's life so thoroughly he has no choice but to come back to them is foiled by Kyu's refusal to abandon Ryu and the rest of Q-class following suit.]]
125	* WoundedGazelleGambit: [[spoiler: Midori Tachikawa, Kazuma's favorite teacher at his elementary school, did this to get money from life insurance. Which wasn't even for herself, but for [[LittlestCancerPatient her seriously ill baby]]'s [[HealthcareMotivation treatment]]. Kazuma unmasks her, but also makes sure she gets a lighter sentence and the money she needs for her child.]]

Context Manga / DetectiveSchoolQ