nothing to see here hm

POSITIVE

Celeste & Makoto: This is one of two of the most developed relationships Celeste has with a classmate. Makoto is drawn to Celeste because of how mysterious she is. He is instantly wary of her and under no illusions as to what a bitch she can be, yet also cannot help trying to get to know her and be nice to her in order to understand her better. As seen in her final FTE and School Mode, in spite of her best efforts this does end up getting to Celeste, leading to her promoting Makoto to "C Rank" in the former and even "B Rank" in the latter. The bond they formed even gets displayed in the Chapter 3 Class Trial where Celeste momentarily malfunctions trying desperately to stay in character when she is shaken by Makoto's earnest plea for her to just be honest, and after her execution where Makoto is upset that Monokuma tempted her into villainy since he truly did consider her a friend up to that point, with him later absolving her of all guilt in the Chapter 6 Class Trial once he learned that Junko stole everyone's memories, since nobody would have murdered anybody had those memories been retained. While the positive nature of their relationship makes sense on Makoto's end, on Celeste's end it's more enigmatic until you realize that she probably sees much of her hidden self of Taeko Yasuhiro in Makoto: a plain, boring kid with a passive talent based around luck. In learning to love Makoto and the unexpected kindness he shows to her, she is slowly, subconsciously beginning to learn to love herself beyond just the Celeste cover.

Celeste & Mondo (One-Sided): Celeste has a strange sort of respect for Mondo. While she considers him dumb and isn't afraid to let him know it, she admires him for living true to himself, the way she sees herself doing. In actuality of course, she is not living "true to herself", and she probably senses on a subconscious level that neither is Mondo. Seeing some of herself in Mondo also extends to his explosive temper, which she always calmy tries to defuse whenever it comes out. Mondo, however, doesn't care all that much for Celeste.

Celeste & Byakuya (One-Sided): Being as rich, smart, powerful and famous as she would like to be, Celeste naturally holds great admiration toward Byakuya. When she attempts to tell him that the two of them are similar, however, Byakuya takes it as an insult and tells her to shut up, as he can tell she's a mere commoner playing pretend. Byakuya thinks so little of Celeste that in School Mode he even forgets her name upon Makoto mentioning it...and then when he remembers her to be "the gambling girl", he says bluntly that he has no interest in her at all. The only time he expressed respect toward her was when she was a murderer.

Celeste & Sayaka: We only see a little of their relationship, but it seems to be one of mutual cordial politeness. Celeste appears to suspect that there is more to Sayaka than meets the eye and that she is much shrewder than she lets on, but doesn't pursue the matter. As far as she's concerned, Sayaka should be allowed her social mask just as she is allowed her own.

Celeste & Kyoko: Kyoko is someone that Celeste respects for her intelligence, something she displays in the first two Class Trials, which leads to her conversing more with Kyoko on serious matters during the third chapter. When composing her murder plan, Celeste sees Kyoko as the biggest threat to it and tries to ensure she's involved as little as possible. After being exposed as the culprit in the third Class Trial, Celeste also remarks that she knew Kyoko would figure out that she utilized Alter Ego in her plan, and before being executed specifically chooses Kyoko to give the key to Alter Ego's location, almost letting some genuine feelings slip since she knows Kyoko is the most invested in the idea of Alter Ego as a means of escaping Hope's Peak...an idea Celeste just couldn't bring herself to believe in.

For her part, Kyoko starts out not showing Celeste any more emotion than she does any of the other students. However, Kyoko's reaction in Celeste's official Relationship Chart and her commentary when Makoto brings Celeste up to her in School Mode suggest that, just like Makoto, she finds Celeste's mysterious deceptiveness intriguing and enjoys trying to "solve" her. The calm yet faintly sad way she looks at Celeste prior to her execution indicates that she does end up seeing past her facade, and the manga even confirms that she internally mourns for her after being given the key to Alter Ego, showing that she respected her too.

Celeste & Sakura: They hold a mutual respect for one another, as Celeste admires Sakura's diligence while Sakura admires the "steady courage" that resides within Celeste. In USC, after Sakura carries Celeste to where she can receive medical attention after spraining her ankle, Celeste displays an almost romantic attraction to Sakura by bemoaning the fact that she is not a handsome man because she would gladly have her live with her in her castle if she was. Sakura tells Celeste that she must have patience, for meeting the right sort of men for her dream will likely take time; advice that Celeste begrudgingly accepts from her. In the stage show where the third and fourth chapters are combined, Celeste is also shown to have respected Sakura and is thus infuriated when she sees her ingest poison, mistakenly thinking that she's simply trying to escape the Killing Game through suicide. This causes her to snap as she tries to beat Sakura to death with a metal bat so that she can instead be the one to escape: either through becoming the Blackened if she succeeds in killing Sakura, or through execution if she fails...in other words, a gamble, one that is worthy of Celestia Ludenberg.

Celeste & Chihiro (One-Sided): Celeste respects Chihiro for persevering despite the visible fear she shows, the kind of fear that Celeste keeps repressed at all times. Chihiro, on the other hand, is understandably intimidated by Celeste and thus doesn't go out of her way to hang out with her. The respect Celeste had for Chihiro means that she is angered when Chihiro dies having broken the Nighttime Rule that Celeste created, with her coldly saying that Chihiro got what she deserved for her defiance of the rule. Unfortunately, we don't get to see a reaction from Celeste upon learning Chihiro's true gender or hear her thoughts about it.

NEGATIVE

Celeste & Taka: Taka shows annoyance at Celeste for flouting school rules and not pulling her weight in group efforts enough, while Celeste is irritated at Taka for being such a hard-assed stickler for school rules even when they aren't partaking in a regular school semester. Celeste also becomes afraid of Taka when he becomes "Kiyondo", seeing him as a potential threat since he's behaving like the previous murderer, which is why she targets him for killing.

Celeste & Leon: Leon holds no interest in Celeste since he's "into more pure-hearted girls", while Celeste (like most) sees Leon as nothing but a frivolous moron. She is also angered by him starting the Killing Game by killing Sayaka when he didn't need to (whether out of anger or a misguided attempt at helping her by himself), although his execution still disturbs her.

Celeste & Hiro: Celeste dislikes Hiro immediately, since he's a lazy, imbecilic bum who has her real last name as his first name. This is why she callously frames him for murder later on.

Celeste & Hifumi (One-Sided): And this would be the other most developed relationship Celeste shares with a classmate. In Chapter 2, Celeste decides that she needs a servant in her back pocket now that the Killing Game is on, so she recruits Hifumi since he appears the easiest to manipulate. Right away, we see that a servant's loyalty means a lot to her, as any backtalk or failure on Hifumi's part risks her breaking her facade and erupting in anger. Hifumi's infatuation with Alter Ego becomes the last straw, as Celeste decides to use him and his feelings for it in her murder plot that involves killing him too after he's served his purpose in helping her. And even here Hifumi ends up causing her a lot of trouble through designing an unwieldy Robo-Justice costume which makes it impossible for Hiro to have killed anyone while wearing it, wiping his glasses of blood and throwing away the handkerchief which exposes that he was faking his death at the time, and saying her real first name of Yasuhiro before dying for real. It's to the point where simply thinking about him enrages her during the Class Trial, and thus the guilt she feels for betraying and killing him is willfully buried deep.

Hifumi, meanwhile, liked and trusted Celeste, making his ultimate fate all the more tragic.

Celeste & Hina: Their relationship is a simple one - Celeste finds Hina to be dumb and Hina finds Celeste to be mean. Despite this, they are able to tolerate one another's company often, and despite her anger at being manipulated and having two of her friends killed by Celeste, Hina still sheds tears for Celeste when she is executed, as she still valued her life.

Celeste & Mukuro (One-Sided): Mukuro as "Junko" seems perfectly fine with Celeste, but Celeste is irritated by Mukuro's inability to conceal her emotions, with her temper and vulgar language reminding her too much of Taeko Yasuhiro for comfort. Thus she coldly bids her a "good riddance" after she is killed, with any horror at her death being masked perfectly.

Celeste & Toko: Toko is as hostile and judgmentally misogynistic toward Celeste as she is the other girls, while Celeste either ignores Toko altogether or treats her with condescending amusement. And naturally, Celeste steers clear of Genocide Jack after she first emerges.

FLIPPED TO POSITIVE

Celeste & Hifumi: Whenever the Killing Game isn't a factor, Celeste and Hifumi actually get on quite well. Hifumi is able to become a competent servant for Celeste who satisfies her unquenchable thirst for royal milk tea, and Celeste in turn provides Hifumi with a lot of inspiration for his manga creating. In the past before their memories are wiped, we see a photo where Hifumi has stolen fake eyelashes from Celeste, who is trying to take them back while attempting to be angry but clearly blushing and laughing as she does so. We also know that Celeste let Hifumi in on her real name, which she wouldn't do unless she trusted him. In USC, there is even a nice moment between them at the bonfire where Celeste tells Hifumi that she will save a room in her castle for him if he ever reincarnates into a handsome vampire, and showing no judgement when he says he'd rather reincarnate into a Magical Girl. Their mutual fondness for manga is also an unspoken source of camaraderie between them.

Celeste & Taka: In School Mode, Taka mentions that he has played darts with Celeste, and in UTDP we see them engage in a friendly, respectful shogi rivalry, with Taka serving her tea every time he loses. Since he constantly loses, he bemoans his failure and calls himself a loser, which causes a fleeting showing of empathy from Celeste as she looks sad. When he finally draws against her, she praises his luck, while he insists it was the result of his hard work in never giving up challenging her, which sparks a bet between them as to whether his hard work can improve society at large or not. In USC, they even play video games together.

Celeste & Mukuro: In scenarios outside of the Killing Game, Celeste is more polite and respectful toward Mukuro. They aren't exactly friends, but there's no hostility present either.