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Kaguya Shinomiya

Voiced by: Aoi Koga (Japanese), Alexis Tipton (English), Jessica Angeles (Latin American Spanish)
Played by: Kanna Hashimoto (live-action movie)

Debut: Chapter 1 (Manga), Episode 1 (Anime)

https://static.tvtropes.org/pmwiki/pub/images/kaguya_8.png
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The titular character and vice-president of the Shuchi'in student council. Her family owns one of Japan's largest companies. As befitting her distinguished lineage, she excels in a large variety of subjects and is considered a "true genius." Engaged in a Battle of Wits with Shirogane to make the other confess their love.


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    Tropes # - F 
  • 100% Adoration Rating: Kaguya is part of the very powerful student council and Shuchi'in Academy's most popular student, inspiring awe and devotion from her fellow schoolmates.
  • Abusive Parents: Her father is the neglectful kind, he lives separate from her and she states he has never even said 'I love you' to her before. Her education also involved violence. Chapter 141 even states Kaguya is actually partly grateful for the distance, which doesn't spell good things about him.
  • Academic Athlete: She consistently has the second highest grades in her class, has two black belts, and is the star member of the school's archery team.
  • A-Cup Angst:
    • Kaguya has enough envy of Fujiwara's large breasts to reconsider going to the beach for vacation.
    • When Ishigami wears her uniform, he notes that it's a bit tight in the chest (due to working out his pectorals), which annoys Kaguya quite a bit.
  • Adaptational Nice Guy: Kaguya's first real act of kindness towards Ishigami (helping him study) happens much earlier in the anime. Her reason for doing so is also far more altruistic due the events leading her to be in his debt having not taken place.
  • Aggressive Submissive: Kaguya tends to be very controlling, but she clearly wants Shirogane to take the lead role in their relationship and views his harsh gazes as one of his most attractive features. Kaguya (Ice) -who is basically Brutal Honesty personified- even stated that being kissed was hotter than giving a kiss.
  • Always Second Best: Kaguya is the best in everything she does, except in exams, where she is only slightly worse than Shirogane, which frustrates her to no end.
  • Always Someone Better: To Shirogane. The reason he goes all out to excel academically over Kaguya is motivated primarily because Kaguya is so good at everything she does, that beating her in exams is the only way he could ever stand with her as her equal.
  • Animal Motifs: Cats, as befitting the Female Feline, Male Mutt dynamic she has with Shirogane. She is cold and looks down on others, but she becomes very affectionate once a person has earned her approval.
  • Annoying Younger Sibling: Downplayed. Kaguya's relationship with Hayasaka is much like that of a younger sister who relies on her older sister for almost everything and causes her no end of stress. Of course, Hayasaka still loves her dearly and admits that she'd do anything for her.
  • Archer Archetype: Kaguya is the star member of the school's archery club and is definitely cold and calculating (initially, anyways). That said, she subverts the "weak at close range" stereotype, as the muscle she built up from constantly using a bow led to her victory during the student council's arm wrestling tournament (along with having a black belt in both aikido and judo).
  • Aren't You Going to Ravish Me?: While she's angry about the possibility that Shirogane might have done something to her while they were in bed together, she's just as angry at the idea that he didn't try something.
  • Baby Factory: While it hasn't happened yet, her oldest brother Oko is planning on forcing her into an Arranged Marriage so her son can be one of his pawns.
  • Batman Gambit: Many of her schemes rely heavily on Kaguya understanding how Shirogane will behave, and will go to insane measures to ensure he will react to situations as she desires.
  • The Beautiful Elite: While being part of one the most affluent families in Japan, to top it off, Kaguya is a gorgeous girl, and bar none other she is hands down the most beautiful student at Shuchi'in Academy.
  • Beneath the Mask: Played with. Kaguya's public appearance is of a perfect, sophisticated young lady, but she is still susceptible to gushing at seeing Shirogane being cute, or becoming extremely frustrated when her plans go awry, though she will never show it. However, if one goes by what Fujiwara and Ishigami say, Kaguya has considerably less of a poker face than she thinks she does.
  • Beware the Nice Ones: Despite initial appearances Kaguya is actually a very sweet, kind, and approachable person. But if you manage to really piss her off (like hurting her friends), she won't hesitate to use her intellect and vast resources to destroy you, and you likely don't have the wits or willpower of Miyuki Shirogane to survive her attacks. For instance, she told every influential Shuchiin student that Ogino, the student responsible for Ishigami becoming a pariah, was a manipulative and dirty bastard, causing him to transfer schools and never contact the girl he cheated on again.
  • Big Sister Instinct: Kaguya is quite protective of Ishigami due to their Like Brother and Sister dynamic, and is quick to speak in defense of his character or punish those who have wronged him.
  • Big Sister Mentor: She takes Ishigami under her wing and helps him improve with both academics and sports. In contrast to the mother/son feel that the Fujiwara/Shirogane training chapters have, she and Ishigami are treated much closer to being equals.
  • Breaking the Cycle of Bad Parenting: Discussed, as she isn't a mother yet. Her father is the very definition of neglectful, while Yume's fortune telling during the culture festival (which was 100% accurate in every other respect) said that she would grow up to be "a good wife and a wise mother".
  • Broken Ace: She excels in everything she does and is considered by many to be the most beautiful woman in school, but when she was younger she could not understand that not everyone is as smart as she is, which alienated everyone around her except Hayasaka and Fujiwara. After entering high school and meeting Shirogane, she warms up considerably and works on her social skills and self-loathing, becoming by far the most popular student in school.
  • Broken Bird: Cracked, at least, but thanks to Shirogane she's mostly better. Her excellence and family name kept her from being able to make friends, culminating in one "friend" saying they couldn't stand to be near her anymore and had only gotten close because their mother had told them to. After that, Kaguya began acting extremely coldly and assumed everyone merely viewed their relationships with others in terms of profits and losses. Seeing Shirogane's altruism helped her mellow out and recognize people's good sides, but she's still very insecure and doesn't seem to have any close friends outside the student council.
  • Byronic Heroine: Oh yes. She's attractive, highly intelligent, and an aloof Broken Bird, who really suffers inner conflict because of her past and the cruel and petty environment she grew up in. She used to be rather haughty, manipulative and arrogant, because of her unhealthy upbringing, but deep down she's a good person. This is due to the fact she genuinely wants to be one, as she wasn't raised to be a good person at all: her family just taught her to be a selfish jerk, concerned with other people only for personal gain and because it could fit her interests. Some traits of her upbringing are still there; she's rather cynical at times and can be manipulative and underhanded when it comes to get the job done, but she became kinder, far more selfless, and ultimately means well.
  • Cannot Spit It Out: She pretends that she refuses to confess, but in truth she's simply incapable of telling Shirogane that she likes him because she has low self-esteem.
  • Cargo Envy: During Chapter 56, she sulks because Shirogane is paying more attention to the night sky than to her.
  • Catchphrase Insult: "How cute". Although it's worth pointing out that this only applies to Shirogane's Imagine Spots. Every time she actually says it she's being sincere with the exception of Chapter 142.
  • Cerebus Retcon: A lot of her more dorky moments (like her interest in fireworks) take on a much darker context once we start to get a picture of what her family life is like.
  • Character Development: With time, Kaguya learns not to be so bitter about her peers unwittingly foiling her plans with Shirogane, as she understands that they don't proceed with malice. However, she still displays the same level of utter dismay and helplessness she feels every time they foil her.
  • Character Tics: In the later stages of the manga, she develops one specifically for the purpose of calming herself down and staying cool around Shirogane. Whenever she's overwhelmed, she puts her right hand on her left cheek, instantly dropping her nerves. This backfires on her when her hand is impeded, making her go bananas in her mind.
  • Childhood Friends: With Hayasaka, having known each other since infancy (though they were separated when they were two and didn't see each other for another five years). It's shown that she considers Hayasaka more of a family to herself than her own.
  • Clingy Jealous Girl: She loathes any girl who tries to get close to Shirogane even Fujiwara her friend. It's to the point she freaks out if he even gets friends that are girls. Ironically, when she finally meets someone else who does have a crush on him (Moeha), the two of them get along great as they both gush about what they like about him. Played for Laughs with Hayasaka, who is really just friends with Shirogane, but loves teasing her mistress that friends can become lovers eventually. Kaguya still sometimes suspects Hayasaka to pine for Shirogane, mostly as revenge for her ridiculous demands and taking her for granted, but it's never something serious.
  • Complexity Addiction: The entire foundation of her relationship with Shirogane starts with both of them refusing to just outright tell the other person that they love them, and they feel they have to use convoluted plans to force each other to confess first. Their plans are masterful and thinking skills second-to-none, but people like Fujiwara frequently prove that all it takes is one tiny piece of interference to utterly foil their schemes.
  • The Confidant: Many students come to Kaguya to ask for advice, especially in matters of love.
    • Kashiwagi typically comes to Kaguya when she has relationship issues with her boyfriend. Kaguya in turn trusts Kashiwagi with her own secrets, like her french-kissing Shirogane and later confessing to him.
    • Kaguya supports Ishigami in his love life with Tsubame and usually criticizes him for his extremely creepy expressions of love.
    • In Chapter 130, Tsubame asks Kaguya on how to handle Ishigami's confession, as she has never looked at Ishigami that way and has Commitment Issues.
  • Cool Big Sis: She initially wanted to be this for Kei, though in a hilarious case of irony, it's Ishigami that she ends up filling this role for. Moreover, this is mutual with Kei, who wants to be close to Kaguya just as badly.
  • Cosmic Motifs: While far more subtle than her relationship to cats, Kaguya has been compared to the moon on several occasions. Aside from the obvious name connection to the moon princess, Papa Shirogane gifted his son the same model of watch that was worn by the Apollo astronauts, saying that it should be worn by someone who's reaching for the moon and Shirogane's birthday present to her after they started dating was a crescent moon necklace). The credits sequence for the second season (which featured symbols representing the most imortant accesories of the main cast) had her represent by the full moon instead her hair ribbon. The waxing and waning of the moon fits in well with her being a Mood-Swinger. And finally, the two most important people in her life share a stellar motif, as the moon is almost always accompanied in the night sky by stars.
  • Covert Pervert: When imagining Shirogane joining her club, he was noticeably showing off his chest. In Chapter 70, she tries to learn what kind of underwear he is wearing, and all scenarios she comes up with make her look like a pervert.
  • Crazy-Prepared
    • According to Chapter 7, Kaguya has at least 42 volumes of manuals to counter what Shirogane will say. To help Shirogane win the election, she coerced one of the candidates into quitting, forced clubs to vote for him and even bribed the election committee! However, it's fair to point out that she loses traction rather easily when things don't go the way she wants them to. On a more serious note, she also had Hayasaka hack into her brothers' computers to presumably acquire compromising data in order to blackmail her family if the circumstances ever call for it.
    • In Chapter 33, Kaguya replaces Shirogane's phone battery with a dead one. The dead battery similar to Shirogane's is revealed as #1 of the seven anti-Shirogane tools.
    • In Chapter 240, Kaguya and Hayasaka bring extra outfits for both genders in case someone comes to the dance underdressed. Iino appreciates the forethought, as Ishigami (her date) had arrived in his school uniform.
  • Cry Cute: The fireworks arc when her father forbid her from attending and when she failed to get there in time after Hayasaka helped her sneak out.
  • Cultured Badass: She is a master in most art-related subjects, be it martial arts, theater, music, ikebana, dancing, painting, traditional tea-brewing and many other things.
  • The Cynic: Kaguya has a very pessimistic view on the world and doesn't engage in society much. Her social circle is thus very small. The Cynicism Catalyst for this was an incident back in middle school, when a classmate admitted that her parents told her to befriend Kaguya, but she was sick of Kaguya's Innocently Insensitive nature. Kaguya then grew scared of everyone around her and distrusted them before she met Shirogane, with Fujiwara being the exception due to her sheer persistence to become friends with Kaguya.
  • Dark and Troubled Past: The flashback she had in Chapter 35 when she was sick strongly implies that she was raised without any familial love.
  • Daughter of a Whore: It's revealed in Chapter 242 that Nayotake was a prostitute working in Gion's red-light district (though it's unclear if Gan'an was her lover or just a client). This is the major reason why Kaguya is treated as such an outsider by the rest of the Shinomiya family.
  • Deadpan Snarker: She comments on a lot of things with a very sarcastic tone, especially regarding Fujiwara. However, she usually keeps her thoughts to herself.
  • Death Glare: When pissed she gives a good one. Usually towards Fujiwara and Ishigami.
  • Death of Personality: In Chapter 141 as a result of her mental conflict from the french kiss as shown by a courtroom where Kaguya's ice side argues with her dumb side while her kid side acts as the judge. The ice side takes back total control of Kaguya's personality as shown by the ice side knocking the dumb side out. Downplayed as it's still Kaguya, just now a different aspect of her personality is dominant.
  • Debt Detester: Her family is one that doesn't like owing people favors. She uses this excuse in order to tutor Ishigami and help get his grades back up after he's in danger of repeating first year, due to him accidentally helping her out when Shirogane backed her into a corner.
  • Defeat Means Friendship: Invoked. Back in middle school, Fujiwara challenged her to to a board game on the condition that she'd have to become her friend if she lost.
  • Defrosting Ice Queen: Her current state. Extras states being with Shirogane actually defrosted her in two months time, though Kaguya seems to think there is still more work to be done. She was apparently even more of an ice queen in middle school, to the point where Fujiwara notes that she was called "Kaguya the Ice Princess".
  • Despair Event Horizon: Played for Laughs in Chapter 57; when Shirogane and Fujiwara are married in the game, Kaguya actually cries and is visibly depressed. It's made even worse when Kaguya is overwhelmingly successful in her ventures while remaining single, while Shirogane and Fujiwara keep popping babies out, and adding insult to injury, they divorce late in the game, but Kaguya had been unable to marry Shirogane in the game, leaving her to win, crying alone on a pile of money.
  • Dislikes the New Guy: When Mikado gets transferred to her class in the third year, Kaguya is unacceping of his presence, going as far as to chastise him for calling her "princess" (a nickname she received back in a family banquet) and rejected Maki's opinion that he and Shirogane are similar.
  • The Drag-Along: For her family, Kaguya is basically an expensive piece of furniture that they can make use of, a carrier of the family name and nothing more. She's to comply to their every whim so that her existence is justified, but has no say in what she wants for herself.
  • The Dreaded: Kaguya comes from a very powerful family and is fully capable of being intimidating on her own if the situation calls for it. Both Betsy and Hayato have ended up traumatized because they had the misfortune of getting on her bad side.
  • Dreams of Flying: The ending for the anime has her dreaming of sprouting wings while the rest of the student council flies alongside her in WWI era planes. It's a fantasy version of Chapter 45.
  • Driven by Envy: Kaguya covets a great deal of aspects from Fujiwara in terms of happiness, personability, friendships and carefree attitude, to the point that she sometimes speculates that Fujiwara is the way she is just to personally spite her. Her relationship with Fujiwara starts turning better when she realizes that those speculations are unfounded, as Fujiwara tends to go out of her way to please her, and that the venom she expresses towards Fujiwara only serves to hurt herself. Also, Fujiwara denies her nothing, so Kaguya's only barrier is actually being too proud to ask.
  • Dude Magnet: She gets confessed to once a month.
  • Easily Forgiven: Fujiwara states in Chapter 77 that she is aware of Kaguya's coldness towards her, but that she loves her regardless. This implies that Kaguya is nowhere as cunning or deadpan as she thinks she is.
  • Embarrassing Nickname:
    • As revealed in Chapter 98, Maki calls her "auntie" since she's Kaguya's second cousin twice removed.
    • Chapter 117 has the whole student council refer to her as the "Muscle Queen" or "Muscle-Hime" after coming out on top in an arm wrestling contest against Shirogane. She was not happy at all with it despite winning.
  • Emotion Suppression: When Kaguya feels anxious or stressed, she can enter into (Ice) Kaguya-mode, who suppresses most emotions. She also trains herself to suppress any emotion when she touches her left cheek with her right hand.
  • Empty Eyes: Flashbacks to a year ago always show her with these. She also sports these whenever she starts scheming.
  • Epic Fail: Massages are the sole exception to her usual competence. Apparently massages given by Kaguya are quite painful.
  • Epiphanic Prison: She is in one created by her family, supported by the weight of the family name and the role she's supposed to fulfill for them. She was conditioned to be an accessory to their family plans, and this left Kaguya as an Ice Queen, perfect, immovable and uncaring. It's later that she realizes that her love for Shirogane is a way out of the prison.
  • Et Tu, Brute?: Betrayal is the one thing that Kaguya absolutely cannot stand. She values secret keepers above all, as she was already betrayed by classmates in elementary school who revealed that she is an illegitimate child. During the class trip in Kyoto, Kaguya's brother, Unyo, intends to break Kaguya by revealing that Hayasaka is The Mole for her eldest brother, Oko. However, while Kaguya is definitely upset, she is willing to hear Hayasaka out, shows empathy to how much Hayasaka had to go through and quickly forgives her.
  • Even Bad Women Love Their Mamas: While she's actually a good person, Kaguya views most of her family with contempt, yet a flashback to her childhood has her expressing anger on her late mother's behalf when her classmates show pity over her being an illegitimate child and her mother's death making her position in the family precarious at best.
    Kaguya: They can say what they want about me, but how dare they talk about my mother like that! I'll never forgive them!
  • Even the Girls Want Her: She garners this attention from both Erika and Fujiwara, as at one point in We Want to Talk About Kaguya, these two rejected the notion of Kaguya cooking for someone else in her mind unless it was them. At least for Fujiwara, she brings it Up to Eleven by disapproving Kaguya's relationship with Shirogane, wanting her best friend all to herself.
  • Expository Hairstyle Change: Occurred pre-series. "Ice" Kaguya's hair is down, present-day Kaguya ties most of it up. Chapter 141 has Kaguya going back to that hairstyle to show that "Ice" Kaguya is back in control. Likewise, when she uses the cloth from Shirogane's present to tie her hair back up in Chapter 150 it's a sign that "Normal" Kaguya has returned.
  • Explain, Explain... Oh, Crap!: After she develops her "ritual," she becomes able to face Shirogane, who asks why she's been avoiding her. But then he grabs her by the wrist to prevent her from running away, distressing her.
    Kaguya: Once I activate my ritual, I'll be unstoppable! Just gotta touch my left cheek with my right hand. The same hand... he's holding.
  • Expressive Hair: Her tied-up hair droops down far more than normal during her depressed state in Chapter 101.
  • Extreme Doormat: Towards her family. When it comes to her future plans, she has a dead-eyed gaze when responding that she'll do whatever her family tells her to do. When confirming her and Shirogane's feelings together, she initially plans to leave the family since they will never accept her being in a relationship with him or going to Stanford. However, when the adrenaline runs out she's scared to go through with it.
  • Failed a Spot Check: Subverted. It seems at first as though Kaguya's ignorance of sexuality means she hasn't caught on to Kashiwagi and Tsubasa clearly having had sex, but it's actually just that she had no reason to talk to her about it. When she calls up Kashiwagi to ask about it and her panicked friend tries to deny it, Kaguya just says "How stupid do you think I am? Now answer the question."
  • Family of Choice: Kaguya has long ago written off the self-centered Jerkasses that make up her biological family as a lost cause and instead looks towards the family of her crush Shirogane as a potential source of familial love. This becomes especially apparent when she talks with Kashiwagi shortly after she and Shirogane start dating, and she says that she wants to be accepted as a member of their family as soon as possible.
  • Family Theme Naming: Her mother's name was Nayotake. When you put the two in age order, you get the full title of the princess from The Tale of the Bamboo Cutter, Nayotake no Kaguya-hime.
  • Fetish: Exhausted Eye Bags. At first it only seemed like she likes it because of how stern it makes Shirogane look and how that adds to his gap moe, but Chapter 64 reveals that the more tired he is, the more excited she gets. Ironically, back when she was still "Kaguya (Ice)", she used to hate them. It's strongly implied that the reason she's attracted to them is because they are the obvious physical sign of him constantly pushing himself to improve.
  • Forehead of Doom: She has a very pronounced forehead, though Art Evolution makes it less noticeable as the series goes on.
  • Forgotten First Meeting: Fujiwara notes that Kaguya has a bad habit of forgetting her first interactions with people, because she often didn't view them as being important enough to remember.
    • She and Shirogane actually met very early on in their freshman year, but she has absolutely no memory of it because his personality at the time made so little of an impression on her. When she's informed that he fell in love with her around that time, she outright states that's impossible due to the fact that they hadn't met yet.
    • Chapter 208 heavily implies that she also met Kei sometime in the past and that she was the one who indirectly encouraged her to leave her overbearing mother so she can return to her more loving father and brother, though Kaguya doesn't seem to remember it either. This puts all of Kei's interactions and deep admiration for Kaguya up until that point in a new light.
    • When Mikado attempts to establish contact with her on his first day at Shuchi'in (Chapter 212), she appears to have forgotten ever interacting with him as a child. Chapter 240 reveals she may remember it too well, with her referring to a broken promise.
    • She first met Fujiwara while the latter was practicing piano alone, and outright told her to quit. While Fujiwara initially found it harsh, that was actually what she needed to hear at the time, as she had already started to suffer massive burnout from playing the piano nonstop and having no time for anything else.
  • Four-Philosophy Ensemble: Quite the cynic, as her worldview is very pessimistic.
  • Friendship Favoritism: During the trip to Kyoto, Hayasaka's friends at school notice that Kaguya is actually very close to Hayasaka. One of them openly argues with Kaguya to see who is her Best Friend and knows Hayasaka better.

    Tropes G - L 
  • Geeky Turn-On: Shirogane's first birthday gift to her after they start dating is a crescent moon necklace that has a 24.8 cm chain. Kaguya starts squeeing over it since that particular length means that it would take approximately one second for it to swing if used as a pendulum (and she correctly assumes that he is wearing an identical one at the same time) so it can be interpreted as "time is ours to share."
  • Genius Bruiser: Kaguya is far stronger she looks, and is an expert in many martial arts like aikido, kyuudo, naginata-jutsu and judo. She also is the second most accomplished student in Shuchi'in.
  • Genius Sweet Tooth: Downplayed. A flashback in Chapter 37 reveals that one of the few things she actually liked in her pre-defrosting days was shortcake. She's tremendously flattered at the fact that Shirogane remembers, though she makes an effort for him not to notice her Crush Blush.
  • Girls Are Really Scared of Horror Movies: She can't handle horror-related stuff.
  • Gone Horribly Right:
    • One of Kaguya's plans involved tricking Shirogane into using tips from "Textbook of Love" from a girls magazine so she'd have plausible cause to claim that he read it to get her to fall for him. All three steps end up working on her perfectly (she even ends up having a Heroic BSoD when he gets to the "say you hate them" step) despite the fact that she knew he was faking it.
    • Again when she tries to use cosplay to get Shirogane to admit he's attracted to her. As he's decided to be honest with his feelings for her, he's quite open with the fact that she looks great, making Kaguya far too flustered to go through with asking him if he likes her.
  • Good People Have Good Sex: In chapter 220, she and Shirogane have finally tied the knot, albeit unintentionally.
  • Happy Dance: Kaguya knows many formal dances, but the way she dances when she's successful is unashamedly gleeful.
  • Hates Being Alone: Kaguya treasures her friends and being left alone leaves her sad and crying. She also reacts very upset when she learns that Hayasaka intends to quit her job, and is seen very clingily sticking close to Hayasaka during the Kyoto trip.
  • Heel Realization: She realizes a few days after committing election fraud that it was wrong.
  • Heh Heh, You Said "X": Exaggerated. The mere mention of the word "wiener" will send her into an uncontrollable laughing fit.
  • Heir Club for Men: Implied Trope. It's hinted that Kaguya has considerably less say in her family matters than her siblings because, simply, she's the only girl, although she's also the youngest sibling. It's further implied that her brothers have more influence in the family and are in line to inherit the whole empire because in terms of her family's dynamics, Men Are Better Than Women. However, it's precisely this isolation that has given Kaguya the courage to seek a better life far from her family, finding friends and people who love her in the way. In reality, her lack of clout in the family is because she's actually an illegitimate child.
  • He Is Not My Boyfriend: Almost never blatantly stated (except perhaps to herself), but Kaguya has several times brushed off suggestions that she likes Shirogane, no matter how obvious the fact is. When Hayasaka's friends ask her, she denies it (despite being in a Secret Relationship already), stating that platonic relationships exist too, only to immediately retract it and openly show her jealousy when she sees Hayasaka being intimate with Shirogane.
    Kaguya: There is no such thing as "Just Friends" between a man and a woman! I know it for a fact!
  • Hellish Pupils: When she gets really mad, she gets these. Having blood-red eyes helps too.
  • Help Mistaken for Attack: When Kaguya tries to help Ishigami study so he won't be held back a year, he comes to the conclusion that she's trying to torture him, even when she gives him some leftover cake as a reward for his hard work.
  • Heroic Bastard: Kaguya's mother was actually a prostitute that Gan'an got pregnant, explaining why she doesn't have as much of a say in the family business as her older brothers.
  • Heroic BSoD:
    • Suffers one when she is forced to stay at home and can't watch the fireworks with her friends. Shirogane and her friends coming to her rescue manage to break her out of it.
    • Suffers one when her flip phone breaks and the data can't be saved. The photos on the phone gave her a feeling of normalcy and that she is living the ordinary life of a highschool girl. She recovers when her friends invite her to their newly created LINE group and share their own photos with her, giving Kaguya her precious mementos back and signalling to her, that they were precious to them as well.
    • Suffers one after she finally kisses Shirogane, and later realizes the ramifications of it. Her IQ shrinks to near zero and she turns into a chibi version of herself, albeit only in the eyes of the reader.
    • She suffers one during the whole Kyoto trip. The thought of losing Hayasaka, after Kaguya learns that Hayasaka is quitting her job, depresses her greatly and leads to several stages of grief. After learning the truth of how miserable Hayasaka feels about working and betraying Kaguya, Kaguya finally accepts and lets Hayasaka go. However, she is very happy to see that Hayasaka has not abandoned her and they can now be completely genuine friends now.
  • Heroic Self-Deprecation: Despite her usual arrogance, she falls into in Chapter 32 when Shirogane says he hates her. She states she knows that she can be cruel and wants to fix that. A more throughout one happens in Chapter 146 because Kaguya (Ice)'s cold attitude worried Shirogane into collapsing. She breaks down, seeing this as proof that no one can love her.
  • Her Own Worst Enemy: Kaguya's "losses" in her games with Shirogane are generally due to her own conceit, or by thinking that she has more control of the situation than she actually does. Hell, even the majority of her "wins" have nothing to do with what she had planned.
  • Heterosexual Life-Partners: With Hayasaka. While their relationship is technically that of a mistress and a servant, Word of God says that they're more like very close sisters, and Chapter 75 suggests that Hayasaka is the only person in the world more important to her than Shirogane.
  • Hope Is Scary: When she's forbidden from going to the Fireworks Festival in Chapter 44, she regrets ever having happy moments with the student council because now she knows the pain of not being able to see them.
  • Hopeless with Tech:
    • Chapter 42 shows that she has very limited knowledge about technology, even thinking that she broke the internet while trying to make a Twitter account. She also starts off the series with a flip phone when everyone else uses smartphones.
    • In an interesting Subversion, Kaguya is really fast at typing.
  • Humble Heroine: Subverted. Despite being a master archer with Improbable Aiming Skills, Kaguya doesn't participate in any tournaments anymore since high school. The Mass Media Club duo assumes that Kaguya humbly stepped down, so others don't feel overwhelmed by her talent and become jealous. The actual reason why she doesn't participate? The tournaments are around Christmas and Kaguya would rather want to spend that time with Shirogane. She nonetheless goes along with what Karen and Erika say, shamelessly giving a very mature response.
  • Hypocrite:
    • Kaguya believes that Shirogane is being ridiculously stubborn when he prevents her from celebrating his birthday, but she is equally quick to shoot down any perceived pity.
    • Kaguya is extremely disturbed when Yume Atenbo, brings up not-publicly available facts like Shirogane's weight at birth during her fortune-telling. Never mind that she herself also obtained that information somehow.
    • Chapter 97 has Kaguya and the other student council girls chide Tsubasa's necklace gift to Kashiwagi as a tacky option. In Chapter 162, she's as gleeful as Kashiwagi was when Shirogane's gift for her is a crescent moon necklace (granted, that he managed to sneak in a subtle message in said gift).
  • Hypocritical Humor: It's a Running Gag of hers to mentally accuse someone else (usually Fujiwara or Kashiwagi) of some negative trait, only to reveal just a few seconds later that she's guilty of the same thing. Of course, this all flies over her head.
  • I Don't Want to Ruin Our Friendship: Even after resolving to confess to Shirogane, Kaguya still can't bring herself to do so because if he turned her down it would destroy the relationship that they already have.
    Kaguya: If you were to reject my confession, there's no doubt that our friendship would be ruined. That's why I want to be confessed to. Because if I were to confess, I might fail. However, if you were to confess to me, your chance of success is 100%!
  • I Gave My Word: If she swears on her honor as a Shinomiya that Ishigami will pass his remedial exams, then she is going to make sure he passes, whether he wants her help or not.
  • I Hate Past Me: She is deeply ashamed of her past as an Ice Queen, referring to herself as having been "a terrible woman with a twisted, disfigured heart." It also puts her square in Insecure Love Interest territory, as it makes her feel unworthy of being loved by a Nice Guy like Shirogane.
  • I Have This Friend: Attempts to use this when confiding her love woes to Kashiwagi. Needless to say, she doesn't fall for it at all. In Chapter 144, Ice Kaguya drops the pretenses and just openly asks Kashiwagi for advice regarding her love life with Shirogane.
  • I Just Want to Be Free: Kaguya has been treated as little more than a pawn by her family her entire life. As a result, she desperately wants to be able to cut ties with them and choose her own path. She even admits to Shirogane in Chapter 218 that her ideal self would be someone who rules the entire planet just so that nobody could tell her what to do.
  • I Just Want to Be Loved: Kaguya was starved of affection her entire life due to her family's Social Darwinist philosophy and emotional neglect from her father, so the things that motivate her the most are a desire for both romantic and familial love. Unfortunately, her desire for the former is hampered by her inability to confess to the boy she likes due to conditioning from the environment she grew up in. Chapter 146 implies Kaguya (Ice)'s desire to be kissed by Shirogane is proof that he loves every part of her, even the parts that she dislikes.
  • I Just Want to Be Normal: Kaguya was raised to be a Social Darwinist because of her family's beliefs and was basically robbed of having a proper childhood due to her father's neglect. As such, she relishes any chance she can get to act like a normal girl.
    • In Chapter 100, her flip phone breaks, and since all the photos she took with it were saved in the internal storage, the data is lost forever, leaving her heartbroken. Kaguya treasured these photos because they captured special moments of an ordinary high school girl's life. After Kaguya gets a smartphone and joins Shirogane's newly created LINE group, she regains her smile when her friends upload their own photos to serve as a replacement.
    • This even extends to her views on romance, as she comments that Kashiwagi and Tsubasa having their first kiss in front of a convenience store must have been wonderful despite her own first kiss with Shirogane having been a thousand times more romantic.
    • In the same chapter, she notes that Kashiwagi refers to her as "Kaguya-chan" as if she considers Kaguya an ordinary friend. When Kashiwagi apologizes and says she won't do it anymore, Kaguya looks a little sad and says she is fine with it, showing that as well as an ordinary love, she also wants ordinary schoolmates who treat her like one of them.
  • I Just Want to Have Friends: Before she joined the student council, Kaguya was, for lack of a better description, a hypercompetent empty husk. Flashbacks show how in the past she tried to bond with Hayasaka and Maki, but due to familial circumstances, both kept a certain distance to her. Her friends gave meaning to her life as more than just the fourth child of a family that doesn't care about her.
  • Ice Queen: Used to be extremely cold and pragmatic both as a result of her upbringing and because very few people could accept her for who she was without resenting her and only seeming to get close to her because of her family. Shirogane's genuine altruism helped her see the good side of everyone around her. However, she freezes back up again after kissing Shirogane... partially. She goes back to her cold demeanor, but actually drops a lot of her tsuntsun attitude, leaving Shirogane unable to understand what she's trying to communicate.
  • Identical Stranger: The light novel spin-off reveals that a girl who attended the school 40 years prior looked near identical to her (as shown via a painting that a boy who had a crush on her had made). While it's possible that they might be related, they definitely aren't her direct ancestor considering the fact that they committed suicide.
  • Ignored Epiphany: When she's trying to get a peek at Shirogane's underpants, she realizes that, should he catch her, she could give him no legitimate reason for what she was doing. But this merely convinces her to change tactics, instead of acknowledge that maybe her goal sounds perverted because it is.
  • Ill Girl: Subverted and Parodied. Kaguya collapses in Chapter 79, seemingly because she suffers from the same heart disease her late mother had. Turns out she recently went through a lot of stress because being close to Shirogane makes her lovesick. She's otherwise completely healthy and fine.
  • Important Hair Accessory: Kaguya ties up her hair with a red ribbon, which she started doing after initially falling in love with Shirogane. It's removed during The First Kiss Never Ends arc when Kaguya (Ice) takes control, and gets replaced with a white cloth from Shirogane's Christmas present at the end of the arc after she and Shirogane confess their feelings before going back to the regular ribbon.
  • Improbable Aiming Skills: She can easily catch a fly using chopsticks. She's also a top-ranked competitive archer.
  • In Vino Veritas: Effectively, given that minors aren't allowed to drink alcohol. She gets a cold and behaves just like she's drunk, at which point Shirogane learns for the first time that she has crappy self-esteem, doesn't know how to handle basic interactions with people and is worried that he hates her.
  • Inferiority Superiority Complex: Openly proud of her pedigree, but just below the surface she's highly insecure and outright hates her own personality sometimes.
  • Innocently Insensitive:
    • As a child, she would regularly tell her classmates to get serious, with good intentions because they weren't as fast as she was, which would regularly hurt their feelings.
    • After she and Shirogane become a couple, she starts sharing the details of their relationship with Hayasaka, not realizing that she's essentially bragging about how awesome it is having a boyfriend to someone who's still single (and may or may not have some feelings for Shirogane herself). She honestly thinks Hayasaka wants to hear all of this because she knows she's curious about romance and thinks Hayasaka would appreciate hearing a first-hand account on an actual relationship, and doesn't understand why she's started running away whenever Kaguya starts talking.
  • Insecure Love Interest: Kaguya, for all her riches, intelligence, looks, and popularity feels that her past as an Ice Queen makes her unworthy of being in love with the kindhearted Shirogane.
  • Instant Expert: She tends to learn how to do things on her first try, such as immediately becoming a better rapper than Shirogane or Fujiwara. She even feels this way herself, dismissing her own exceptional archery skills by saying that she hit a lucky bullseye once, and every shot she's taken ever since is just imitating what she did that time.
  • Instant Fan Club: Karen and Erika refer to themselves as the "Kaguya-sama Fan Club", though they admit that it's just something that they like to call themselves. Kaguya is oblivious to their worship and probably doesn't even know who they are beyond being members of the mass media club.
  • Instantly Proven Wrong: When Kaguya jokes about making Hayasaka walk home in the rain, Hayasaka threatens her with divine retribution. Kaguya scoffs that she doesn't believe in those superst- cue a gust of wind in her face blowing up her umbrella.
  • Insult Backfire: Miko says that she's just like Shirogane (a cruel bully who will go to any length to get what they want). She takes it as a sign that they're perfect for each other.
  • Insult of Endearment: Maki continues to call her "auntie" even after they're on good terms, presumably a result of habit more than anything else.
  • Intelligence Equals Isolation: Kaguya knows this trope and states that she generally only uses 60 percent of her abilities to avoid this.
  • Internal Reformist: Once it becomes clear that she'll never truly be able to have her own life so long as her family remains as it is (via an indirect threat from her eldest brother), she withdraws her application to Stanford so she can focus on changing the Shinomiyas for the better and thus be free to live out her dream of staying with Shirogane's family.
  • Internalized Categorism: Kaguya is not really comfortable with her sexuality, because of her old-fashioned and repressive upbringing. She can never just say that she wants physical affection, it has to be initiated by someone else or rationalized as for their benefit.
    (when Shirogane deflects her attempt to cuddle with him) What is wrong with him?! He's treating me like a nuisance! Of course I know that his work is important...that's precisely why I'm trying to help him relax.
    Narration: Kaguya had an excuse ready to go.
  • It's All About Me: A bad habit Kaguya herself acknowledges she has due to her upbringing as a Shinomiya.
    • She tends to factor how likable a person is based on their current value in furthering Kaguya's own goals.
    • For the sake of impressing Shirogane, Kaguya is perfectly willing to exploit a school fundraiser to make herself look good, even if she has to undermine her fellow council members and render their donation invalid.
    • In Chapter 180, when Kaguya asks why Hayasaka didn't bring up the matter of quitting her job to Kaguya earlier, Hayasaka notes that whenever Kaguya calls her to her room to talk in the night, all they talk about is her. Kaguya never wants to talk about or listen to Hayasaka's own share of problems.
  • Jerkass Has a Point:
    • When Fujiwara got her fortune in Chapter 51 that stated she is incredibly kind, Kaguya thought that it was a lie and she was actually pretty selfish. Kaguya's thoughts were proven right when Ishigami revealed he shared Fujiwara's birthday and Fujiwara had a hissy fit about sharing the date.
    • Kaguya is rather ruthless during the election, including forcing a rival candidate to drop out and trying to bribe Iino (Shirogane's other rival) to do the same, and for the arguably selfish motivation of wanting to continue working with Shirogane on the Student Council. However, she's understandably annoyed when Shirogane almost snatches defeat from the jaws of victory by snapping Iino out of her Heroic BSoD, causing Iino to eloquently debate her points and almost win the election despite having been at an overwhelming disadvantage before. Shirogane ends up apologizing to Kaguya for wasting her hard work.
  • Jerk with a Heart of Gold: Subverted, as she doesn't want to be a jerk at all but was raised to be one. Kaguya is capable of rare acts of kindness early on (something which becomes much more common as the series progresses). Due to being born into an uncaring high-class family, the manner Kaguya was raised caused her to be prideful, cold and calculating; but underneath her personality traits, she is really an innocent, kind and fair-minded teenage girl at heart.
  • Kindness Button:
    • Having her relationship with Shirogane validated, however indirectly, by someone else.
    • Kaguya greatly values trustworthiness. Proving they can keep a secret is an absolute must for her to consider someone a friend.
  • The Lancer: To Shirogane, in her role as vice president. Where Shirogane is a charismatic Determinator who leads through example, Kaguya is much more ruthless and underhanded.
  • Last-Name Basis: With the exception of Kei and Maki, Kaguya refers to everyone by their last name no matter how close with them she is. It wouldn't be until Chapter 187 that she'd willingly call someone by their first name (in this case, Hayasaka).
  • Letting Her Hair Down: Inverted. Removing her ribbon and letting her hair hang down is the telltale sign that (Ice) is in control.
  • Like Brother and Sister: By the time the culture festival rolls around, Kaguya has come to view Ishigami as her precious little brother and appears to have a far better relationship with him than any of her actual brothers. Quite a few chapters have her either doting on him or doing something to help him improve his self confidence.
  • Like Parent, Like Spouse: Shirogane's courtship of her started near identically to how his parents got together (the boy clawing his way to the top of his class to catch the girl's attention). His father is quick to pick up on this the first time they meet and gives her a Secret Test of Character to make sure that she doesn't have sinister intentions like his Gold Digger estranged wife.
  • Lonely Rich Kid: She lives in a Big Fancy House separate from the rest of her family due to being an illegitimate child, and is isolated from most of her peers with only two real friends to speak of at the beginning of the series.
  • Longing Look: Lampshaded in Chapter 45, when her internal monologue points out her inability to look away from Shirogane despite the fireworks she so desperately wanted to see being just outside the window of the taxi they were in. Though it would take another 75 chapters before she would admit to herself that she actually had feelings for him.
  • Lovable Alpha Bitch: Despite her haughty demeanor and effectively being at the very top of Shuchi'in's Popularity Food Chain, Kaguya refuses to judge others based on rumors and hearsay. This is best shown with her relationship with Ishigami, whom she develops a close Sempai/Kohai bond with despite him having supposedly stalked a girl back in middle school, and goes so far as to scare off several girls with a Death Glare when they try to dissuade her from associating with him. She'd already investigated the rumors on her own with Shirogane since she found them suspicious.
  • Love Epiphany: She finally admits to herself (and Hayasaka) that she's in love with Shirogane in Chapter 120.
  • Love Makes You Dumb:
    • In preparation for Shirogane's birthday, Kaguya buys him a huge birthday cake. Hayasaka recognizes the overkill immediately, and it's only right before she gives it that Kaguya remembers that Fujiwara's birthday cake was much smaller—and much less embarrassing. While she mulls over what to do, Kaguya imagines a dialogue between her "cold side" and her "dumb side," evoking a Good Angel, Bad Angel conflict. Her dumb side advocates fiercely to give Shirogane the cake, being open, honest, and insistent about Kaguya's love for him.
    Hayasaka: You didn't use to be such a moron...
    • Played for laughs. When Shirogane tells her to come with him to Stanford, she French-kisses him so hard that they're both left in a state of stupefaction.
    • Inverted once she and Shirogane actually start dating. Since she's no longer wasting any brainpower on trying to outsmart him, she ends up running circles around the entire council with little effort.
  • Love Redeems: Kaguya used to be a borderline empty shell, whose only view on others was based on how she could take advantage of them. Falling in love with Shirogane caused her to realize how toxic her worldview was and (slowly) become a nicer person.
  • Loving Details: When Shirogane claims that she probably doesn't even remember his birthday since he only ever told her once, she mentally lists off his birthday, horoscope sign, blood type, and birth weight (with a caption noting that he never told her the last two things).
  • Luminescent Blush: She is prone to these whenever she has romantic thoughts about or intimate interactions with Shirogane.
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    Tropes M - R 
  • Mafia Princess: Played with. Her father is a Corrupt Corporate Executive rather than a crime boss, though it's treated as the same thing (just on a much larger scale). Of course, Kaguya herself has very little power within the family compared to her older brothers due to some combination of her age, gender, and illegitimate birth.
  • Mandatory Line: Kaguya appears in every single chapter in the main series up until the New Game arc, though Chapters 43 and 65 only have her show up at the very last panel to deliver a single line (highlighting her loneliness in the former, and wondering where everyone is in the latter).
  • Manipulative Bastard: An effective strategy she uses very often on Fujiwara is to redirect her attention or manipulate her emotions to control her either to her advantage, or out of the way if she is interfering.
  • Master of the Mixed Message: Kaguya embodies this trope during the post-culture festival arc, with constant contradictory actions every time she interacts with Shirogane. This is exacerbated by the fact that Shirogane is so used to their mind games that he can't see when she's trying to be direct with him, and he's too off-balance to notice her advances.
  • Meaningful Name: She tries to avert it, because the original Kaguya ended her life lonely and heartbroken.
  • Missing Mom: Her mother Nayotake died from heart disease shortly after she was born.
  • Moe Couplet: Her interactions with Ishigami in later chapters really help to bring her nurturing side to the surface as well as highlight her Character Development.
  • Mood-Swinger: Lampshaded by Fujiwara of all people in Chapter 139. Kaguya's emotions can change at the drop of the hat going from cold and calculated, happy and love struck, scared and nervous or angry and hate-filled based on her surroundings. These various moods are represented by several distinct pseudopersonalities that engage in mental court cases (it's specified at multiple points that they are not Split Personalities, just caricatures).
  • Murder the Hypotenuse:
    • She considers doing this to Moeha after discovering that she has a crush on Shirogane, but it quickly turns into a bonding moment between the two when it's revealed that all of Moeha's reasons for liking him match up with her own.
      The joy that comes from sharing the things you like about your first love is a miracle that eclipses all contempt for one's rival in love.
    • This comes up again when she discovers how close Shirogane and Iino are (albeit in a strictly platonic sense), though Iino quickly defuses the situation by revealing to Kaguya that she knows about and supports her Secret Relationship with Shirogane.
  • Muscle Angst: Being crowned the "Muscle Queen" after accidentally winning the student council arm wrestling tournament didn't sit well with her, especially after Shirogane starts referring to her as such. She packs some muscle due to the fact that she's a competition-level archer.
  • My God, What Have I Done?: She reacts this way in Chapter 130, when she accidentally tried to sabotage Ishigami's chances with Tsubame, mistakenly believing that Ishigami's love rival (and not Ishigami himself) just confessed to Tsubame (which she encouraged him to do). The moment Kaguya realizes she screwed up, she immediately takes back everything she just said to Tsubame. A volume bonus also reveals that she tasks Hayasaka to set up a mixer for Ishigami to recompense.
  • Naginatas Are Feminine: Karen mentions that she's skilled at naginata-jutsu, though she's never shown wielding one.
  • Never Be Hurt Again: The reason for Kaguya being an Ice Queen in middle school is because she realized a lot of her classmates approached her due to her family and thus she shut them out because of fear of being hurt.
  • Never Had a Birthday Party: As one of the many signs of her father's neglect, It's casually mentioned in Chapter 53 that she's never celebrated her birthday. The closest she's ever gotten is the family's New Year's gathering, and even then the only person who actually wishes her a Happy Birthday is her unseen sister-in-law.
  • Nice to the Waiter: While Kaguya can occasionally be needy and ungrateful, she values her bond with Hayasaka above all others (even her relationship with Shirogane) and views her as a sister in all but name.
  • Nightmare Face: She's a master of making different varieties of this expression whenever she either schemes, smirks, or is glaring at someone (usually Fujiwara), especially in the earlier chapters. This is so poignant that Ishigami thinks that both him and Fujiwara are in mortal danger every time Kaguya glares at them like that.
  • No Challenge Equals No Satisfaction: She is disconcerted in the moon-viewing chapter, because in it Shirogane gives her everything she wants and yet simultaneously pays no real attention to her.
  • No Hero to His Valet: Kaguya is looked up to in school, both as a the second highest scoring student and as the daughter of a prestigious family. The only exceptions to this rule are Hayasaka and Maki, the former for being her childhood friend and confidant, and the latter for being her intellectual equal and cousin.
  • No Infantile Amnesia: A bonus yonkoma released in the fifth Season 2 Blu-Ray reveals that she vaguely remembers being cuddled by her mother despite the fact that Nayotake died shortly after her birth.
  • Not So Above It All:
    • She does a Spit Take every time Fujiwara mentions the word "Chinchin" Explanation  during a casual conversation. Once the latter figures out it's making her laugh, she relentlessly continues saying it. Kaguya meanwhile, tries her hardest to get her to stop and foils Fujiwara's repeated attempts to get Shirogane to say it. He later runs out thinking the two girls wanted to do perverted things to him.
    • Chapter 42 shows that she also has imagine spots of Shirogane saying "How Cute".
    • Chapter 91 has her acting all high-and-mighty that a nearly exploding balloon doesn't scare her (while actually using her hand-on-cheek trick to calm herself). When Fujiwara points out that Kaguya can't pump the balloon with one hand, she immediately loses her composure and starts to panic, and even resorts to several drastic measures to make the balloon burst while standing away from it far enough.
    • Chapter 141 is this for her ice side from Chapter 59. Despite her dismissive attitude towards Shirogane in that chapter, she's also shown as chibi with blush stickers holding one of the heart balloons as she tries to mock the dumb side. She's angry that her dumb side kissed Shirogane because she wanted him to kiss her. She then snaps when Kaguya and her dumb side yell that she doesn't love Shirogane, exploding that she fell for him first before the dumb side ever existed.
  • Obfuscating Stupidity: She has attempted to act stupider to appeal to Shirogane.
  • Odd Couple: What started as a simple gag of Kaguya scaring Ishigami away by her presence alone, evolved into a quite interesting friendship as the series progresses. Kaguya becomes supportive of Ishigami's growth out of his shell, hoping he achieves his objectives, while Ishigami sees Kaguya as someone he can confide the support into becoming a better person, being someone he fully trusts.
  • Odd Friendship: Her friendship with Fujiwara is something of an enigma, given that they are almost complete opposites (she used to be cold and calculating, while Fujiwara is cheery and random). Despite this, she considers their friendship to be of equal value to her crush on Shirogane... most of the time anyways.
  • Oh, Crap!: When she realized that she's too happy by Shirogane using her gift to scheme properly in Chapter 54.
  • Ojou: Her family owns one of Japan's largest companies, and displays mastery over a variety of artistic and intellectual subjects. However, as hard as she tries to behave as one, she often displays lapses in behavior that are unbefitting of a proper one many times.
  • Only Friend: Since Hayasaka's friends in school largely serve to give her information and she is putting on a fake persona, Kaguya has been her only real friend who knows what she is really like, at least until Hayasaka and Shirogane eventually become friends.
  • OOC Is Serious Business:
    • When Kaguya gets her flip phone destroyed, she's too depressed to make any banter with Hayasaka, and too focused on it to notice her opportunity to get Shirogane to make a "battle" of him giving his LINE number, outright giving him hers without much of a fuss.
    • When she calls Shirogane by his full name and confessing she truly likes him, it completely shocks Hayasaka. This is a very big deal since the reason she asked him to run for reelection was because she couldn't say his name without feeling embarassed.
  • Outnumbered Sibling: She has three older brothers. Although it speaks volumes about how poor her relationship with them is when the one who tried to kidnap her best friend is the one that she hates the least.
  • Palm-on-Cheek Pose: This is actually a plot point in Chapter 81, where Kaguya conditions herself, Pavlovian style, to calm down whenever she places her right hand on her left cheek. Any time she's seen doing so afterwards is a sign to the reader that she's trying to keep her feelings for Shirogane in check. A bonus yonkoma released with the fifth Season 2 Blu-ray reveals that she chose this pose because it subconsciously reminds her of being cuddled by her late mother.
  • The Paranoiac: Kaguya was starved of familial affection, raised to view others as tools or obstacles to be overcome, and had a very personal secret leaked by her classmates when she was young. As such, she tends to treat everyone around her with suspision unless they've proven beyond a shadow of a doubt that they're trustworthy (and sometimes not even then).
  • Parental Neglect: Her powerful family is distant but also controlling, leaving Kaguya with little to no familial love to speak of.
  • Pet the Dog: In Chapter 54, she sincerely thanks Ishigami for his inadvertent help in deflecting Shirogane's mental assault. The next chapter has her helping Ishigami studying to pass his exams (and intimidating people who try to bully him).
  • Poor Communication Kills: Kaguya and Shirogane are just as lost about love as the other; the fact that they employ resourcefulness and scheming in order to one-up each other, in spite of the aforementioned ignorance, is what provides most of the humor in the manga.
  • Power Perversion Potential: Discussed In-Universe. Since Kaguya is a gifted Instant Expert that learns how to do difficult things on her first try, the Mass Media Club duo hypothesizes that she will make herself into a Sex Goddess very soon after becoming sexually active. Even more eyebrow-raising, this theory is hinted to be correct later on in Chapter 138 when Kaguya shows she learned how to french kiss from witnessing Kashiwagi and her boyfriend kissing once and a few romantic movies.
  • Practically Different Generations
    • Her three brothers are significantly older than her, and one of them has a young son. The fact that she's an illegitimate child with a different mother may have something to do with it.
    • This age gap also plays in reverse: Kaguya's valet (same age as her) is the daughter of Kaguya's youngest brother's valet. Maki was born the very same day as Kaguya, but calls her "auntie" due to Kaguya being two generations over her (Kaguya asks her not to).
  • The Prankster: It's significantly downplayed, but Kaguya develops a love of pulling pranks on her friends in later chapters. This also ties into her role as a Defrosting Ice Queen, as the very idea of pulling a prank on someone was unthinkable to her in the first volume.
  • Precious Photo: Not so much a particular photo, but Kaguya cherished all the pictures she had on her cell phone due to them representing the fact that she actually had things that she wanted to remember. She took it pretty hard when the phone was destroyed due to it being an old model that stored everything on its internal memory, and didn't recover until the rest of the student council uploaded similar photos to a shared album after she got a smartphone.
  • Psychological Projection: The undisputed master of this, and often played for laughs.
  • Raven Hair, Ivory Skin: Kaguya is noticeably paler than every other character in the series which her hair and eyes accentuate, and is considered very beautiful by others.
  • Red Eyes, Take Warning: Kaguya's bright red eyes hint at her scheming nature, though this applies less and less as she defrosts.
  • Removing the Rival: During Shirogane's reelection, she gets Hayato to drop out of the race with a Breaking Speech. She tries to do so with Miko as well, suggesting that she give up her current campaign in exchange for Kaguya helping her get elected the next year but a well timed Insult Backfire on Miko's part causes her momentum to fall apart. As a result, she's not happy when Shirogane manages to help Miko overcome her stage fright and nearly close the gap between her and Shirogane.
  • Renaissance Man: Is said to excel in music, theater, martial arts, and countless other subjects. As the series goes it, she's shown to be rather physically skilled too.
  • The Resenter:
    • In earlier chapters, she is quick to take offense and ire every time her plans with Shirogane are spoiled by either Fujiwara or Ishigami, so much that there's only venom in her mind; however, she's just as quick to calm down when kindness is dispensed upon her, and as the story progresses, she starts gradually appealing to her better nature, and admitting that such rage is caustic and unhealthy not only to them as people she considers her dear friends, but to herself too.
    • Kaguya regards Fujiwara as her best friend. Also as her biggest rival for Shirogane's affection. Chapter 40 shows it goes deeper than that. Kaguya is jealous that Fujiwara has a cheerful personality, a loving family and a chest.
  • Reused Character Design: Kaguya appears to have been based off of Yume Furusuna from ib: Instant Bullet.
  • Rich in Dollars, Poor in Sense: As stated above, Kaguya's family owns a large company and is the definition of a sheltered princess.
  • Right for the Wrong Reasons: At the start of the story, Kaguya constantly assumed that Fujiwara would become a threat to her relationship with Shirogane in the future, fearing that the guy she liked would fall in love with her best friend. Come Chapter 223, Fujiwara indeed started to become a threat to Shirogane and Kaguya's relationship, because she felt that Kaguya is hers alone and rejected the notion that her best friend is dating someone else.
  • Romantic Wingman: She appoints herself to this role after finding out about Ishigami's crush on Tsubame, as she hopes that him winning her affection would be good for his self-confidence. Given that this is Kaguya, her help involves forcing him to study more and encouraging Tsubame to turn down any other potential boyfriends as harshly as possible.
  • Running Away to Cry: Kaguya was raised to never express her emotions unless it was so she could manipulate others. As such, she has the tendency of hiding under a staircase whenever she's sad in order to cry away from view. It's implied that her habit of doing this is how Shirogane knew where to find her during the fireworks arc.

    Tropes S - Z 
  • Sarcastic Confession: Chapter 163 has Kaguya admit to the rest of the student council that she and Shirogane started dating over winter break before claiming that it was a prank (as the rest of the chapter had been about Fujiwara trying to come up with a way to prank her as a lead in for a surprise birthday party).note  She tells Shirogane afterwards that she wanted a chance to show off their relationship while still keeping it a secret, and this proved to be the perfect opportunity.
  • Schemer: Kaguya is the more proactive of the two when it comes to getting the other to confess. A lot of chapters are kicked off by her using her massive wealth to set up a plan.
  • School Idol: Kaguya is stated to be one of three most popular girls in school, and unlike Tsubame or the unseen Koromo Shiranui, other students (specifically, Karen and Erika) are actually shown to worship her.
  • Secret-Keeper: Like all elder council members, she is aware of Ishigami's past. However, Chapter 90 reveals that she did tell every influential Shuchi'in person about what really happened between Ogino and Ishigami, and was this close to telling Otomo as well. In Chapter 189, Kaguya confesses to Osaragi that if the latter hadn't given Ishigami's file to Tsubame, she would have eventually.
  • Secret Test of Character: Chapter 172 reveals that she used to test other girls like this: Kaguya would tell them a juicy secret, then later Hayasaka would talk to that girl's friends to see if she'd gossiped about it or not. If the girl had spilled the beans, it "proved" to Kaguya that she wasn't trustworthy and therefore didn't deserve to be her friend. The narration explicitly calls this a bad habit borne from the Shinomiya family's lack of trust in "outsiders", and suggests that if Kaguya could trust people without having to test them first, she might have had more friends than just Fujiwara. Of course, the obvious issue with this form of testing is that she was never able to gauge Hayasaka's trustworthiness.
  • Sempai/Kohai: Her relationship with Ishigami evolves into this as the series progresses, with the two of them developing an almost sibling-like bond by the time the culture festival rolls around.
  • Sensory Overload: Kaguya is very sensitive to strong stimuli, particularly loud noises and foul smells. It's apparently genetic, given than Maki also can't deal with loud noises.
  • Sexy Santa Dress: A Santa dress is the first of several cosplay outfits she wears in chapter 112 in an attempt to catch Shirogane off guard (though it's more cute than sexy due to the series shying away from gratuitious fanservice). It fails to get the desired reaction because he had decided the previous chapter to start being honest with his feelings for her.
  • Sexy Shirt Switch: When Kaguya sleeps over at Shirogane's in chapter 219, she requests one of his shirts to sleep in before she gets in the bath (the visit was unplanned, so she didn't have a change of clothes). It's clearly an attempt to set the mood since both of them want to have Their First Time but feel too awkward to just say it out loud.
  • Sheltered Aristocrat: Kaguya has been raised with a very sheltered upbringing. She has no idea how movie theaters work, is unfamiliar with popular fictional figures, and has no idea what the phrase "first time" means. Even after 'extensive' self-education, she's only managed to reach an elementary school student's resistance to dirty jokes.
  • Shipper with an Agenda: She started shipping Ishigami with Tsubame after finding out about his crush, since she feels that him winning her affection would improve his self-confidence.
  • Shipping Torpedo: When Fujiwara is thinking about getting a boyfriend in Chapter 235 and Shirogane and Ishigami suggest Mikado as a possible beau, Kaguya immediately puts her foot down on the idea, saying he can't be trusted.
  • Shrinking Violet: Deep down, she's just too shy to admit that she likes Shirogane and too scared to admit to tell him herself. She finds this shameful and thus pretends she refuses to confess because of crazy power dynamics, hence the plot.
  • Shut Up, Hannibal!: At the end of the Class Trip arc, Kaguya's brother, Unyo, intends to make Hayasaka join him and break both Kaguya and Hayasaka by revealing the truth about Hayasaka's role as The Mole to Kaguya. Expecting Kaguya to abandon Hayasaka (so he can take her for himself), he instead gets a Bitch Slap and a reprimand from Kaguya for interrupting Hayasaka.
    Kaguya: Excuse me!! Hayasaka was trying to explain herself!
  • Siblings Wanted: She always wanted a younger sister so she tries to be a Cool Big Sis for Kei. This happens to be mutual, but she and Kei seldom have the opportunity to meet.
  • Sibling Yin-Yang: Downplayed with Hayasaka. Kaguya is dark-haired and has red eyes, while Hayasaka is fair-haired and has blue eyes, and while, unlike Hayasaka, Kaguya is a bit stunted when it comes to technology, they are similarly intelligent and have similar personalities.
  • Silly Rabbit, Idealism Is for Kids!: In Chapter 12, she mentally mocks Fujiwara for taking her words at face value.
  • Single-Target Sexuality: She only has eyes for the president. In fact the only person to come close to getting the same type of affection is Kei because of how much she resembles her brother. The various AUs of the Official Doujin reveal that her feelings for Shirogane are a universal constant. It does't matter if he's a girl, her Kindergarten teacher, or even the big bad wolf; she'll still fall in love with him.
  • Single Woman Seeks Good Man: Played for Drama. Kaguya fell in love with Shirogane because he showed her that there is such a thing as a truly altruistic person, and she is an Insecure Love Interest due to feeling that her past as an Ice Queen makes her unworthy of loving somebody as kind as him. It's also the source of the series' premise, as the entire reason she wants him to confess to her rather than the other way around is that she's afraid that all the signs of him liking her are just her misinterpreting his natural kindness towards everyone.
  • Sins of Our Fathers: Averted. Papa Shirogane presumably knows that it was her family that stole his company, but he doesn't hold it against her.
  • Skewed Priorities: She considers the possibility of having sex with Shirogane to be a more pressing matter than the ongoing Shinomiya/Shijo war that could determine her entire future. Maki is quick to lampshade this.
  • Slasher Smile: She has a tendency to give this out a lot when one of her plans are working.
  • Smug Smiler: She is very smug earlier on in the series, especially when she has the upper hand against Shirogane.
  • The Social Darwinist: She mentally judges people as either "superior" and "inferior", and goes to obsessive lengths to establish that she's the former. Later in the series, she laments the fact that she has been conditioned to think of people as tools for her use.
  • So Proud of You:
    • She is proud of Shirogane for loving her, as this allowed her to start loving herself from the low point where she thought that her life was bitter and pointless. This is so prevalent that everything he does fills her with joy.
    • She's on the verge of tears when Ishigami manages to place in the top 50 during finals.
  • Southpaw Advantage: While she has trained herself to use her right hand for everyday tasks, Kaguya is naturally left-handed. Her left arm is also far stronger than her right due to it being the one she uses to pull the bowstring when she practices archery.
  • Spare to the Throne: In spite of belonging to the Shinomiya family, Kaguya is not particularly held in high regard by them; as an illegitimate child, she's considered a mere accessory to the family's wishes. This further implies that Kaguya is not among the siblings that would immediately inherit part of the empire, but would have to fulfill the conditions to do so.
  • Spoiled Sweet: Kaguya's curious enthusiasm about the more mundane aspects of life directly collides with her superficial knowledge about them. For instance, while she knows that vending machines take money, she's unaware that these don't accept the highest denomination of Yen bills. Early in the manga, she brings the most ostentatious and succulent bento box she can put together for Shirogane to try, but Shirogane takes this as an insult to his own bento, which was cooked by himself.
  • Stepford Smiler: Kaguya is fully aware of how unhealthy her family life is and all the damage it has done to her, but she feels that she has no right to complain since she is blessed with extraordinary wealth and talent that most people can only dream of.
  • Stern Teacher: Kaguya's own tutors used Corporal Punishment when teaching her as a child, and she is shown to employ similar methods in her study sessions with Ishigami (to the point that he initially thought she was trying to torture him). However, she does have his best interests at heart and makes sure to reward him whenever his hard work pays off.
    Kaguya: I can train you, but I only know how to be strict. Surely you can handle that, right?
  • Stronger Than They Look: Despite her delicate looking body and possible heart problems, her years of practicing archery have resulted in her having a great deal of arm strength (Ishigami wasn't able to so much as make her budge when they arm wrestled in Chapter 117).
  • Strong Family Resemblance: Assuming that the girl from Dr. Tanuma's flashback in Chapter 79 was Kaguya's mother, Nayotake, then Kaguya is her spitting image.
  • Stylistic Suck: Invoked example in Chapter 62 after Kaguya realizes that she drew her picture of Shirogane too pretty which would reveal her feelings for him, she then makes her picture as ugly as possible while keeping the physical traits that she likes about him to counterbalance it. It backfires on her every time, as even making Shirogane look like he went through a garbage compactor, she still finds him attractive.
  • Subordinate Excuse: This is the primary reason why she asks Shirogane to run for a second term. Being on the council was the only excuse they had to spend time together that wouldn't involve admitting their feelings for each other. The reason why she asked him to run rather than do so herself was because she didn't feel comfortable calling him anything other than "president".
  • Sugar-and-Ice Personality: Can switch easily between scaring Ishigami to death with her glare and acting like an angel.
  • Super-Deformed: She turns into a chibi version of herself whenever she feels extreme happiness and has a lack of sleep, which Fujiwara labels as the rare "Kaguya-chan" which she had seen only three times. The narration points out that this is merely artistic license; in-universe she looks the same as always.
  • Sweet Tooth: For cake especially. It was one of the few things Iceguya was willing to talk about.
  • Talking in Your Sleep: She ends up mumbling to herself while taking an afternoon nap in Chapter 172, accidentally revealing her status as Shirogane's girlfriend to Onodera (who happened to be passing by at the time).
  • Tearful Smile:
    • When her cellphone breaks, she's starts smiling since she now has an excuse to upgrade to a smartphone. It's only once the fact that all the photos stored on it were lost (since the phone was old enough that it had neither cloud storage nor an SD card) sinks in that she starts crying.
    • This happens again when she's giving a practice confession to Hayasaka regarding all the things she loves about Shirogane, while admitting she could never keep him from going to Stanford.
  • Tears of Joy: She's on the verge of crying in Chapter 198 when Ishigami's hard work is rewarded and he places 36th in the final exams.
  • Teasing from Behind the Language Barrier: She says... something to Shirogane in the extended version of Chapter 20, leading him into thinking it was in French and smirking as she watches him try and look it up in a French-to-Japanese dictionary. The audience never finds out what she said.
  • Technician vs. Performer: She's the Technician to Shirogane's Performer. Kaguya is the meticulous planner, while Shirogane is better at on-the-spot improvisation. They're both easily defeated by random Spanners In The Works, though.
    • Also the Technician to Fujiwara's Perfomer when it comes to teaching Shirogane how to dance. Kaguya focuses on coldly memorizing the steps and movement, while Fujiwara emphasizes on capturing the feeling of the dance.
  • Teen Genius: Unlike Shirogane, her intelligence is a result of natural talent, and she excels in a wide variety of fields.
  • Tender Tears: She breaks down when she misses the summer festival that she had planned with the student council, but Shirogane finds her and together with the council members, hurriedly try to get her to another festival so that she doesn't miss out, making Kaguya realize that in spite of her own family's dismissal of her, her friends love her and want her to be happy.
  • That Wasn't a Request: Before tutoring Ishigami, she asks him to follow her to a private place. Ishigami says no. Kaguya does not respond well.
    Kaguya: "No"? What do you mean, "no"?! Come with me! (bodily drags him off)
  • Through His Stomach: Kaguya tries on multiple occasions to give Shirogane food as part of some plan to get him to confess, but circumstances always conspire to keep him from actually eating it (barring a single slice of birthday cake). It isn't until Chapter 226 that she actually manages to give him a proper meal, by which point they've already been dating for several months.
  • Token Evil Teammate: While she's of course not evil, Kaguya's icy and unsympathetic side comes out when she's protecting herself or her loved ones from threats.
  • Too Much Alike: Aside from the conflict between the main and branch families, this is the reason Maki and Kaguya can't get along very well. Even when Maki wants to thank Kaguya for spending time with her, she makes it seem like she just wants to insult and show off her skills to her "auntie".
  • Trophy Child: Her father treats her like some fancy doll to be put on display at parties and has never once displayed the slightest hint of parental affection for her.
  • Tsundere: Despite her initial depiction, this is the trait Kaguya displays most prominently. Her cold demeanor may make her seem like a stereotypical Yandere at first, but her genuine, selfless feelings, (mentally) combative dynamic with Shirogane, frequent slips into maiden-in-love mode when nobody's looking, and saying "It's not like I like him or something!" more than once is pretty good evidence she's a very well hidden tsundere. She was officially diagnosed as such by one of the best doctors in the world in Chapter 79. After the kiss with Shirogane she takes a different, colder tsundere stance and yet being more open at the same time.
  • Unbroken Vigil: When Shirogane ends up collapsing from a combination of overworking and stress (the latter of which being brought about by her regressing to her (Ice) persona), she spends the next several hours by his bedside at the hospital, not leaving until he regains consciousness so the doctor can perform their examination.
  • Unkempt Beauty: Shirogane comments on her beauty while she's soaking wet, covered in mud, and scratched up after she saved the Mass Media Club president from drowning in a garbage-filled swamp. In fact, it was the very moment he first fell in love with her.
  • Uptown Girl: Played with. Kaguya is an affluent and pedigreed girl who is mutually in love with Shirogane, an overachieving lower-class boy. However, the issue of their class difference is seldom touched upon, as they consider each other worthy equals (though it is a major factor in their decision to keep their relationship a secret when they start dating).
  • Violently Protective Girlfriend: Do not even think about insulting Shirogane if she's in earshot. She won't need her two black belts to make you wish you'd never been born, as both Betsy and Hayato can attest.
  • Vitriolic Best Friends: One-sided example with Fujiwara. While she does consider Fujiwara as her best friend, she regularly mentally insults her intelligence. And Fujiwara knows this all too well, going by Chapter 77.
  • Warts and All: For Kaguya, a couple being able to share and accept each other's flaws is what romance is all about. This ends up leading to the final hurdle she and Shirogane have to overcome before their Relationship Upgrade, as he believes that one should only display their ideal self to their significant other and has no idea why she's suddenly acting cold to him.
  • We Were Your Team: It's lampshaded by Iino in Chapter 246 that the entire current student council (save for herself) is only there because of Kaguya either directly (Shirogane and Fujiwara) or indirectly (Ishigami), meaning that she'd effectively be all alone when she runs for Student Council President the following term. This was also foreshadowed in the final Official Doujin chapter when Kaguya was Retgoned and nobody could figure out why Fujiwara had joined the council.
  • What Beautiful Eyes!: Shirogane compares them to moist rubies.
  • What the Hell, Hero?: In Chapter 188, she calls out Ishigami for giving Iino the cold shoulder when she tried to ask how his date with Tsubame went. As they are fellow student council members, it was only natural for her to be curious. Ishigami heeds her words and apologizes.
  • White Sheep: Discounting her unseen sister-in-law, Kaguya appears to be the only member of the Shinomiya main branch who is capable of empathy.
  • Wingding Eyes: When Shirogane goes out of his way to help Iino in Chapter 68, she has hearts appear on her eyes.
  • With Friends Like These...: She can go from considering Fujiwara to be her best friend to being a blight on society and then back again at the drop of a hat. Made even more hilarious by the fact that it's genetic, as she's displayed the same views towards Fujiwara's father and little sister as well.
  • Women Prefer Strong Men: In a way, Kaguya is very attracted to Shirogane's glare and when he loses it, she complains that he looks weak. She also gushes about how proactive and assertive he is. Flashbacks show that she didn't even acknowledge his existence until he challenged her to a contest to see who could get high scores on the end-of-semester exams.
  • Worf Had the Flu: Shirogane has narrowly beaten her in test scores five times in a row after reforming himself into an ace student in order to impress her. However, at least two of the five times involved had a reasonable excuse that may have lowered her scores: In the first test she was only giving 60% effort and for the fifth she was helping Ishigami in his studies. Thus, it's actually unclear as to whether he could still beat her if she went 100% and undistracted.
  • Yamato Nadeshiko: Subverted. Kaguya definitely resembles the archetype in terms of looks and upbringing, but her more aggressive personality means she just falls short of actually qualifying.
  • Yandere: Played for Laughs mostly, but has shown shades of this, such as when she thinks Fujiwara is getting too close to Shirogane, or has an Imagine Spot where they're lovers. She also didn't seem very happy when she first met Kei, his younger sister, and found out that Kei and Fujiwara already knew each other. Though brief, Kaguya could be seen with those eyes and uttering some murderous intent during those brief moments before it gets defused. Though some may argue that this is merely an expression of extreme tsun-ness instead of psychosis, and she is really harmless.
  • You Called Me "X"; It Must Be Serious: Kaguya seems physically incapable of calling Shirogane anything other than "president", to the point that it's the entire reason she asked him to run for reelection. Which is why it's such a big deal when she refers to him by his full name when she admits to Hayasaka that she's in love with him.
  • You Keep Telling Yourself That: In spite of her snooty attitude, inner Machiavellian working and overblown pride, Kaguya is shown to always proceed out of sincerity and kindness regardless of her inner workings, and she expresses considerable dismay if there's even a hint of unbecoming behavior from herself for someone of her stature (or at least, when she notices). She is a better, kinder and more grounded person than she thinks she is. During (Ice) Kaguya's rant in Chapter 146 of how unlovable she is, she reveals, while lonely, Kaguya actually preferred being isolated in middle school because she didn't have to worry about always unintentionally hurting others' feelings.

    Kaguya (Ice), Kaguya (Moron), and Kaguya (Child) 
https://static.tvtropes.org/pmwiki/pub/images/v15.png
Ice (left) and Moron (right)
A trio of pseudopersonalities, representing various aspects of Kaguya's psyche.
  • All Periods Are PMS: Downplayed. (Ice) becomes the dominant personality during times where Kaguya is under a great deal of stress, and her character page in volume 15 specifically lists Kaguya's period showing up outside of its normal cycle as one of the triggers.
  • Aloof Dark-Haired Girl: Kaguya (Ice) is this big time, representing the part of Kaguya that avoids others out of fear of hurting them and being hurt in turn.
  • Attack! Attack! Attack!: What Kaguya (Moron)'s approach to love amounts to. No thinky, yes kissy.
  • Birds of a Feather: Kaguya (Ice) is noted in her character profile to be very similar to Ishigami (both are isolated from their peers and have a habit of speaking their mind without thinking of the consequences), and the reason why she is significantly kinder to him than everyone else is because she views him as a kindred spirit and wants to guide him down the right path.
  • Black Bead Eyes: After her Super-Deformed character redesign, Kaguya (Moron) is depicted with sketchy vertical slits for eyes. Before that, she just had normal Tareme Eyes.
  • Brutal Honesty: In Chapter 53, (Ice) is at least willing to admit she's attracted to Shirogane and states, "she has an insatiable craving for his ..." before regular Kaguya cut her off. This seems to also apply to her interactions with anyone other than Shirogane, as unlike her usual self her cold side is incredibly blunt while asking Kashiwagi for advice, outright admitting that she is in love with Shirogane, that she wants to be kissed by him, and that if he wanted to she would probably let him have sex with her. Unfortunately, she is unable to be honest when she is actually faced with him, something she is fully aware of.
  • Divergent Character Evolution: Kaguya (Ice) and Kaguya (Moron) originally looked near identical, save for the fact that they wore different seasonal uniforms, had different hair styles, had different eyes, and (Moron) had a flower growing out of her head. Starting with Chapter 141, (Moron) started being depicted in a Super-Deformed style, while (Ice) remained more or less the same (save for her hair becoming more detailed).
  • Dress-Coded for Your Convenience: (Ice) and (Moron) had this dynamic during their first two appearances. (Ice) represents Kaguya's cold, unfeeling past, so she wears the winter uniform. Meanwhile, (Moron) represents the warmer parts of their personality and wears the summer uniform. This was dropped following (Moron)'s redesign.
  • Early Installment Character Design Difference: During her first two appearances, Kaguya (Moron) looked just like regular Kaguya, just with much rounder eyes and a flower growing out of her head. From her third appearance onward, she is instead renedered in a Super-Deformed style to better contrast her with the more normal looking Kaguya (Ice).
  • Freudian Trio: Kaguya (Ice) is the Superego, Kaguya (Moron) is the Id, and Kaguya (Child) is the Ego who serves as the judge. Interestingly, all three of them directly interact with Kaguya herself, and acknowledge that they're simply parts of her as a whole person.
  • Ghost in the Machine: The three of them play the role of Kaguya's Id, Ego, and Superego, while acting out mental court cases with her when she's at a complete loss for what to do. Unlike most examples, the three of them explicitly do not exist within the context on the story and are mearly an artistic representation of her being a Mood-Swinger.
    Kaguya (Child): We're all you. You're the one who has to make the decision. So? What do "we" want to do?
  • I Am a Monster: A variation. The (Ice) persona is well aware of being an embodiment of the Shinomiya family's upbringing and seeing Shirogane fainted gets her to the conclusion that she is undeserved of his affections.
  • I Am Not Pretty: Seen on the quote below, (Ice) loathes herself a lot more since she represent all of Kaguya's negative aspects and assumed that Shirogane would never fell for some as "disgusting" as her.
  • Insecure Love Interest: Kaguya (Ice) turns this Up to Eleven compared to regular Kaguya, given the fact that she's the representation of everything that Kaguya hates about herself. The only reason her complete lack of self-esteem isn't obvious at first glance is because she's an Ice Queen.
    Kaguya (Ice): The President said himself that he hates unkind people who hurt others. I'm selfish and aggressive! Jealous and deceitful! A coward who fears other people! I always hurt people, and there's not a kind bone in my body! I have to conceal this part of me! Who could fall in love with such a disgusting person?!
  • Last-Name Basis: Unlike every other aspect of Kaguya's personality (including Kaguya herself), Kaguya (Ice) is the only one who addresses Shirogane by name instead of calling him "President" (presumably because the others didn't actually exist until after he was elected).
  • Love Makes You Dumb: The ethos for (Moron), as she represents Kaguya's unconscious base desire for Shirogane.
  • My God, What Have I Done?: Chapter 145 has (Ice) reacted in horror as Shirogane fainted from overwork and his stresses of trying to retain a perfect image in front of Kaguya. (Ice) took this as a sign that her Innocently Insensitive personality makes her undeserving of Shirogane's affection and almost backing down from trying to win his heart.
  • Non-Standard Character Design: Post-redesign, (Moron) is the only character who is rendered in a Super-Deformed style with Black Bead Eyes.
  • Painting the Medium: Kaguya (Ice) has white-on-black speech bubbles to emphasize just how different she is than the rest of Kaguya's personalities barring the time when she takes control during the post-culture festival arc.
  • Split Personality: Subverted. (Ice), (Moron), and (Child) all appear to be split peronalities, but they are all explicitly an artistic representation of Kaguya being a Mood-Swinger rather than distinct entities unto themselves.
  • Split-Personality Makeover: Downplayed, as all the changes in appearance when the various aspects of Kaguya's personality come to the forefront are outright stated to be artistic license barring when Kaguya (Ice) removes her hair ribbon. This even gets played for laughs in Chapter 141 when Kaguya (Moron) takes control. To the audience, she appears to be Super-Deformed, but when shown from the perspective of the other characters we see that she looks the same as always (if somewhat drowsy due to a lack of sleep).
 
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Nail Polish (ENG)

Kaguya wants Miyuki to notice her nail polish, but he can't seem to take a hint... as far as she knows.

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