Yanhui/Synopsis

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==History==
Yanhui was an orphaned child who grew up on the streets of New York City, New York, surviving by stealing from mafia members who attack her. After killing two, she takes some of their money but is quickly surrounded by more. Afraid, her cursed technique grows unrestrained and they are all transformed into babies or older men or their tween selves. She quickly runs, sprinting so fast that she is traveling through time, year after year passing until she is stopped by Gojo Satoru in the year 2014. They engage in a short battle and she successfully breaks through his Infinity, something he'd thought to have been impossible. He comments on how he didn't think the massive spike of cursed energy that would emerge in America for a single millisecond without fail for 90 years would be her. She is suddenly bombarded by memories of his entire life, from start to finish, and confusedly takes a few moments to understand what she's seen. He asks her what's wrong and she realizes that she'd seen herself in his future. She demands him to take her with him and he agrees.
=== Déjà-vu Arc ===
Locked within the Key of Nirvana, she literally watches as her life flashes before her eyes and is shown the childhood memories her brain has suppressed to protect her.
First, she sees her father smiling down at her in her cradle, her mother chastising him in Russian and asking him when he'll stop bothering her. He laughs it off and asks if Yanhui has been given a name yet - Mary replies no. Her father smiles and grants her the name Yanhui, and whispers to her in Mandarin that it's so that one day she will return to her family and rebuild it. Mary asks what he said and he simply smiles. Two years pass, and within them, she sees her mother push her father around a lot, and finally, when she is three, Mary becomes involved with a capo of the Italian mafia to pursue her dreams of being a Hollywood actress. She always invites him over when she's in town, tossing Yanhui in the dark closet to watch, sometimes forgetting she's even inside.
Mary becomes more greedy the following year, sleeping with high ranking men of the Chicago mafia who visit to do business. Her life goes on a downward spiral and she becomes addicted to drugs, and begins abusing Yanhui, who Mary only keeps to take care of herself. She will switch from beating her to sitting her on her lap and affectionately telling her tales of her home in the Soviet Union, how she wished to be a ballerina but had to cut her dream short because of a serious foot injury. She teaches Yanhui how to speak in a Mid-Atlantic accent, the reason why Yanhui speaks English in such an odd manner. 
One day, whilst Mary leaves for a "party", her father comes over to visit and asks Yanhui where Mary is in Mandarin. Yanhui says she left for a party and he look incredibly heartbroken. He then notices how skinny she is and how rundown the apartment is and guiltily asks how long she’s been gone. She says 4 days and he decides to cook Chinese noodles for her, afterwards sitting her on his lap and telling her of his family back home. He leaves after she falls asleep and apologizes for being a neglectful father to her slumbering self.
Mary has a curse on her
When Mary returns, she has multiple breakdowns, hating herself for essentially being a prostitute, and cursing other women for taking her roles. She throws a vase at Yanhui because someone had forced her to "service" him in order to keep her role in a movie. Yanhui tries to console her but is usually tossed aside, and is told to not speak so often. Yanhui sees her father again, and Mary reluctantly begins bedding him again, enjoying how much he loves her. While Yanhui is forgotten in the closet, Mary sarcastically asks him why he hasn't with her instead of his daughter and he says that it's of course because he loves her more. This is groundbreaking for Yanhui, who has grown attached to him. She develops a coping mechanism in which she sees the world through painted over hallucinations, her parents having intercourse. Over the years, Mary grows worse and worse, and Yanhui is frightened. When she's five, she begins suffering from extreme pain and internal bleeding, but under the guise of her mental disorder, with symptoms very similar to schizoaffective disorder, she sees them as beautiful ivy wrapped around her and the blood as roses.
Afterwards, Mary becomes a devout Roman Catholic, often bringing a middle-aged man over who appears to be apart of a cult. She forces Yanhui to sit through his sermons, and he eventually persuades Mary to allow him to tutor/babysit a seven-year-old Yanhui. She agrees and leaves home more often, and he begins molesting and grooming Yanhui, slowly but surely worsening her hallucinations. When he harshly takes her virginity, he leaves her in a pool of her own blood on the bed. Yanhui is paralyzed on the bed and her eyes are dim as she struggles to process the rape, and when Mary sees her, she immediately deduces what happened and hugs her and apologizes for letting such a thing befall her daughter. She promises to take better care of her, and she does, becoming nicer for a short while. However, she soon reverts back to her old ways after she goes to a dinner party.
Mary occasionally leaves to go to these dinner parties, leaving Yanhui hungry at home. She has longer outbursts because and forces Yanhui to read the Catholic Bible and pray with her for hours one end. Yanhui sometimes has outbursts of her own and her mother beats her, calling her psychotic. One day, she comes home frightened, repeatedly saying she has done something wrong while Yanhui pets her head, seeing her as a white cat. The next, however, the capo storms the house with his men and Mary shoves Yanhui in the closet but forgets to lock it. He accuses her of being a whore and sleeping with other men and he and his associates do unspeakable things to her for hours on end whilst she pleads for them to stop. Yanhui shuffles a bit, knocking into something sticky, and a large jumping spider crawls up her arm, jumping on her face. It bites her, stinging her, and Yanhui begins to tremble as she knows she can't move or make a sound. It searches all parts of her body, and Yanhui catches a glimpse of what's going on through the crack, hallucinating it as five large birds surrounding a flower, pollinating it. It ends with gunshots and the spider jumps away from her.
Her entire body is covered in bites and she places a hand on her arm, unknowingly using Reverse Cursed Technique. When she hears that they've disappeared, she still stays for a while, instincts telling her to. She sees her mother's defiled, bloody corpse dragged away, people talking about how they'd love to have fun with it, before it glitches into a scene of flowers again. She finally leaves the closet and the house, taking to the streets. Yanhui never sees her father again and begins to hallucinate having a happy family from a picture book she "read" when she was younger. She is beat up and almost kidnapped multiple times, and it's only a year later when she finally gets used to living on the streets. She still hallucinates her parents until she is picked up by Gojo.
Gojo recognizes her as dangerous and lies about what her technique truly is, as time manipulation would be abused by whoever got their hands on her. He later realizes she has a severe mental disorder and has her receive treatment. When she's gotten better, she has slowly forgotten what has happened in her childhood and demands to go to Russia. Unable to control her, he allows it, also arranging for her to go back to America and study under wing of one of his friends. She has faint memories of her mother and sometimes hears her voice telling her to not do certain things, but remembers she loved to do ballet. Yanhui auditions for the Vaganova Academy of Russian Ballet and is readily accepted. When the head coach of the Russian Rhythmic Gymnastics Team comes so her girls can receive a special choreography class, she stumbles upon Yanhui stretching in the halls and strikes up a conversation with her. Yanhui ends up doing rhythmic gymnastics with her as a full-time ballet student and sorcerer. 
==Synopsis==
===Kieran Santos===
Yanhui, at eight years old, is sent to Arizona to calm her cursed energy as Gojo took note that she would die very soon from the amount of cursed energy within her. Too much cursed energy, of course, breaks a vessel. She meets Tahoma Lapahie and Kieran Santos, and he introduces the two to each other. She and Kieran immediately clash, Kieran asking why she's pretending to be British. Yanhui is unsure of how to respond and Tahoma breaks them up. They bond very closely through the course of three months, and near the end, when Kieran reveals he can bring fictional things to life, Yanhui asks if he can feed her pills to save her as she feels her life drawing to a close. He agrees, and within seconds she is transformed into superhuman after ingesting horrible tasting potions and pills and going through intense pain.
She leaves and comes back a year later, now a rhythmic gymnast. She has changed quite exponentially and is dressed like a doll, mirroring Galina Iner's thoughts. Kieran does not like the change, and they butt heads. However, a wave of special grades attack the house due to Kieran's increase of power and kill Tahoma in the dead of night. When the children awake, they are met with his corpse, and Yanhui has a mental breakdown, returning to a simplified world of flowers and happiness, blocking out everything around her. She unknowingly wraps her surroundings into her incomplete Domain and Kieran angrily lectures her, trying to bring her back to reality. She refuses to, rocking herself and covering her ears, when the clock on her right eye goes back an hour, bringing Tahoma back to life.
Kieran explains the situation to Tahoma after Yanhui passes out and Tahoma suddenly realizes why Gojo has pawed her off to him and why she's not been given to the same organization that handles Kieran. He deduces that she can manipulate time and makes plans with Gojo, telling Kieran he should do his utmost to protect her. When she awakes the next day, Tahoma forces her to place a Binding Vow on herself that is set with her own conditions that will restrict her cursed energy amount so that she will be less likely to drop dead at any given moment and not be revealed to be a special grade.
=== Cursed Child Arc ===
During the Night Parade of a Hundred Demons, Yanhui is currently attending a charity Christmas gala for politicians and oligarchs held by her rhythmic gymnastics coach and who she considers to now be her surrogate mother - Galina Iner. She is dressed in a short, revealing qipao with a cut-out chest and high leg slit. Irina comments on how the only things her growing hips and breasts are for is to attract the men. She jealously watches as Galina tends to other gymnasts and mentions how one of Galina's former gymnasts has become the mistress of the President and bore him twins. Yanhui clenches her fist until blood appears and she goes out onto stage, first playing the guqin and then a dance to stereotypical Chinese music. Some of the crowd praise Galina for finding such an oriental, rare species. The lecherous gazes of the sea of men watching her cause her to have a panic attack despite seeing them as child-like animal creatures. She runs offstage after her head begins to ache from repressed memories and Galina begins to lecture her in front of the other gymnasts, gripping her arm tightly. She says this wouldn't've happened if she didn't spend all her time wasting away at her ballet academy ran by an idiot.
Yanhui begins to hallucinate again, refusing to face the reality of Galina's favor slipping, when she remembers her cursed technique. She goes back in time and is shaking, realizing she can't perform. She looks through all existing timelines and finds the most perfect one, enforcing the perfect outcome to come into reality. Once she's finished, she's met with a standing ovation, but can see some wives calling her a whore. Her head begins splitting open and she almost has another episode. After the other performances, Galina gives her some criticism, and dinner begins, and she is groped by an old man and told disparaging comments, now surrounded. She almost has another panic attack, gazing at their faceless selves, but gets through it, albeit incredibly light-headed. Her phone is endlessly buzzing from Gojo texting her and asking just where she is.
===Catacombs Arc===
===Cursed Womb Arc===
Yanhui, now fourteen, exorcises a curse built from the resentment of the Vaganova Academy students, besting it with positive energy formed from the Reverse Cursed Technique as she is unable to really use her technique. She continues on with her ballet classes, and chats with Vera, who is revealed to be her girlfriend, and bears a striking resemblance to Mary. After the school day ends, she texts Kieran and asks for ride to Tokyo. They chat for a bit and he drops her off at the detention center. Yanhui introduces herself and apologizes for being so late, saying she was busy with some private matters. The trio immediately register her as carrying an extremely odd aura that chills their soul whilst also granting them a sense of yearning.
They then head inside after Yanhui flaunts her student ID and Megumi is surprised to see they've entered a curse's Innate Domain. Yuji and Nobara comically begin to panic but Megumi stays confident that his Divine Dog will smell any threats. The squad moves out to find any humans trapped inside and eventually happen upon their mutilated bodies. Megumi and Yuki begin to argue and Nobara begins yelling at them both. Yanhui sees a vision of the future and shoves Nobara aside, dragged through the floor by a curse. 
Yanhui is immediately surrounded by innumerable curses and expertly wraps both her hands by opening her pocket dimension, seizing two pairs of satin pointe shoe ribbons. She engages in combat quickly, naturally moving at supersonic speeds and dealing incredible damage with simply her body. Her cursed energy is the fastest thing in the known universe, carrying the qualities of time, and is extremely malleable with a grid-like pattern, a nod to the fabric of time. When she realizes just using cursed energy will take some time, she simply skips to a minute forward in time, bringing in the effects of what would've happened had a minute passed into that exact moment. 
She manages to meet up with Nobara, saving her from a few curses with a few punches, and helps heal her wounds, Nobara viewing her as a holy being. Megumi then arrives, and together, they travel outside of the detention center. Yanhui volunteers to take Nobara home as Megumi waits for Yuji. 
After Yuji passes away, in Tokyo, four mysterious figures walk amongst the regular crowd of people. They discuss why the sorcerer among them used a Sukuna Finger in order to test Sukuna's strength. Eventually, they stroll into a café where everyone can only see the man despite the cursed company he's keeping. 
===Cursed Training Arc===
Saddened by Yuji's death, Megumi, Yanhui, and Nobara sit on stairs together. They try to act like they're not upset since they haven't known Yuji very long, but they can't hide it. Yanhui, however, does not share their sentiments since she'd only spoken a single word to him, so she tries to comfort them and hints that he isn't truly dead. The second-year jujutsu students arrive to find them sulking. Maki asks why they're looking so glum but Panda reveals that their classmate died. This is Nobara and Yanhui's introduction to their senpai: Maki Zenin, Toge Inumaki, and Panda. Panda apologizes for Maki's rudeness and asks that they participate in the Kyoto Sister-School Goodwill Event. Since the third-year students are suspended at the moment, Tokyo High needs more participants. In order to get stronger for Yuji, both the first-years agree to participate, and Yanhui decidedly agrees with nothing else to do.
Elsewhere at the meeting between the sorcerer and cursed spirits, the curses explain that they want to make their kind the true beings of the Earth and gain the dominant position the humans currently have. They've come to ask how to defeat the jujutsu sorcerers. In order to go to war, they will need to render Satoru Gojo unable to fight and make Sukuna their ally. The curses believe Yuji to be dead but the sorcerer isn't so sure. The sorcerer also reveals something surprising - they must also seal Yanhui. The curse asks who she is, and angrily says that if he doesn't know her, she must be irrelevant. The sorcerer smiles and says that there is more than meets the eye with her.
While Yanhui goes to her dorm after a day of labor, she reveals her daunting room. Inside is a towering cardboard cutout figure of Pope Francis, lots of mirrors so she can be "surrounded by winners", an ethereal painting of pregnant Sonic, and a sign with a mustache that reads "Man Cave". She has no bed and does not even use her room, instead sleeping in her pocket dimension where even spending a millennia there equates to no time passing in the real world. Once she has woken up, refreshed, she teleports herself to the Vaganova Ballet Academy whilst having a body double pulled from the time stream attend her lessons in Tokyo in her stead. When she arrives, she changes into a leotard and pink tights, and eats breakfast in the cafeteria. However, soon the students will be weighed for a monthly weigh-in, and a voice in her head criticizes her for becoming such a fat pig. She goes to the bathroom to regurgitate her meal and lotus flowers seem to fall from her lips. 
During pas de deus class, a male student flirts with her, and she reciprocates. She seems to be in somewhat of a daze, and when in the changing room, hears a shriek from one of her classmates. They found an active spiderweb, and Yanhui shudders, quickly leaving to the Novagorsk gym. Galina body shames her upon seeing her and constantly points out minor errors in her routines, chastising and yelling at her. She informs her that after the gala, she's found at least six men who are interested in her, and that if she wants them, she will have to make sure she doesn't embarrass Galina. 
===Kyoto Goodwill Event Arc===
They enter her room, which has since gained new decor, including a tapestry of Philipp Kirkorov with the Russian word for "pussy" above him, a hauntingly large statue of a clown dressed as a ballerina, a disco ball above the Pope cutout, who is now joined by five other figures and is wearing a scarf of boobs. Yanhui explains the colors of the Pope and what they represent - white, meaning it's time to pray, blue, meaning he's sad and to perhaps cheer him up with a prayer, and red, which is danger. She says she has security cameras on him to ensure he doesn't move when she isn't looking and decided they weren't enough, which is why she has now given him more companions. After grabbing her lucky charm, a yodeling pickle toy, she leaves with her schoolmates.
===Party Arc ===
=== Shibuya Incident Arc ===