I HAD FINISHED REWRITING. BUT I'M LAZY TO PASTE THE CHANGES HERE SO JUST CHECK MY OC BOOK ROLEPLAY TO SEE THE CHANGES.

(Last name, first name)
Name: Yoru Yukina
Hero name: Twilight
Nickname: Yuki(mostly by everyone she befriends)
Yoki(by Shigaraki Tomura-Yoki is combined name of her last name and her nickname Yuki)
Traitor(after the attack at Paranormal Liberation if she ever chose LOV)

Position: Hero in training(though, she really hated the term hero and villain)

Side she is one/Alignment: Her side only. Neutral. She only sticks to her side always. She believes that it is up to her on how she will decide for her best, from what sees & won't regret the most and sticks to it

Age: 14-15 years old during UA entrance recommendation exam
15-16 years old

Birthday: December 24

Height: 149 cm

Gender & Sex: Female

School: UA
Class: 1st year, Class 1-A

Looks: (Check them all below)

She is often seen wearing the UA uniform with her hair styled like the picture above. Sometimes seen in gym clothes provided by UA.

Casual clothes: She wears a turtle neck sweater(red, blue or violet). A long white skirt reaching her knees or black leggings for the bottom. Blue sneakers or furry boots.

During the summer, she often wears blue denim shorts or the same white skirt for the bottom and the same blue sneakers. For her top:

An off-shoulder top and black sando underneath.

Her nightwear is oftenly a white shirt. She either wears dark blue pyjamas or black jogging pants with loose leg openings.

Hero suit
She wears a long-sleeve blouse with a black ribbon with a yellow trim and gold yellow clip holding the ribbon in place(like the pic above). Black shorts that somehow kinda looks like a skirt, with gold yellow sparkles.

Her look during near end of War Arc to present:(check pic below)

Thigh-high black socks, and black boots(boots like the pic below):

Her outfit is almost wholly(possibly partially) fireproof. The tip and bottom part of her boots are partially iron for close combat, to add power to her kicks. Her entire outfit is made for a light and quick get-up and easy moving, also made to protect herself from the danger. The fabric isn't too thin or thick, but just right. It is perfect for any seasons. However, during winter season, she will have to wear a white scarf around her neck.

The wing like clip, comes out mechanical transparent blue glasses(like Kaminari's) which helps in scouting and spying, x-ray vision. There is also an earpiece and small microphone connected to the clip for better communications. The earpiece and microphone is connected to her phone.

Quirk type: Emitter(seven elements) ; Mutant(vampire side, it is naturally part of her but the government said, "It is a mutation of a quirk!")
Quirk: Seven Elements(earth, air, water, ice, fire, light, nature)
Half Vampire(though Vampirism is part of her naturally and cannot be erased in any means or any ways, the government still counted it as a mutated quirk)

Quirk abilities:
Seven elements-She can manipulate all the seven elements that are mentioned. Some can be created out of nowhere(Air, water, nature, ice, fire and light). While some can be manipulated when there's presence of it(all seven elements). Some elements can be used for support or addition in speed, scouting and fighting(all seven elements)

Half Vampire-Enhanced strength, speed, height of jump and enhnaced senses. Regeneration & reattaching of her own limbs & self-healing. She can cut through some things with her hand and can use the air force for cutting as well. She can tell someone's presence by the scent of their blood and heartbeat. Replenishing of strength and speed and self heal varies on the blood source. If it's especially a human, a human with sweet personality or strong determination gives a lot of boost. If it's vampire blood, a normal boost.

Quirk limits:
Seven elements
Overall limit: She can only use two elements at the same time. So she has to be wise in choosing. After using two elements, she will have to rest (unknown how long, it varies to how long she used those elements, mostly takes more than 10 minutes of resting, she'll be shortening that time rest in the summer camp)

However, when she used one element wholly, she can switch to another element then another because of the limit in each element, but there are two minute-interval of resting before switching. She will be workin on this limit at the summer camp, enabling her switch elements with no time interval of resting.

(Resting as in, not using the elements quirk)

Overused elements causes her to be fatigue and hunger or thirst for blood but she has control over that, but not drinking blood to regain strength will be bad for her health. Too much fatigue can lead to her being crystallized. A hardened crystal will wrap around her and will be served as a shield. It will melt in time, usually 24 hours to a week, it depends on how worn out she is.

Using three or more elements at the same time can possibly lead to knock out as well, but she will working on that limit at the Summer Camp.

Limits in each element when overused:
1. Earth-body pain, possibly unable to move or having a hard time to move.
2. Air-no limit discovered so far.(discovered soon at the summer training. See discovered list)
3. Water-fatigue, possibly thirst for blood
4. Ice-too much use causes ice to form on her body, much likely the same as Todoroki Shoto's limit in ice. Though it doesn't affect her much because she is cold-blooded, but not purely cold-blood. So if she exceeds 0°F, expect for cold breath and ice affecting her.
5. Fire-too much use causes dehydration, possibly lead to blood thirst.
6. Light-fatigue that will surely lead to blood thirst
7. Nature-no limits discovered so far(discovered soon during the summer training. See discovered list at the bottom.)

Half vampire: Drinking blood helps her a lot, so if she wasn't able to consume blood, she's not that strong. Regeneration, reattaching and self-healing requires a lot of energy, that will affect her strength and speed if she earned too many wounds. She has to drink blood to regain her energy and strength.

Of course, her strength and speed also have limits. So she'll go weak eventually if she didn't consume any blood.

She oftenly drinks vampire blood provided by her father. Though, human blood helps her more than vampire blood.

She cannot specifically determine the direction someone's scent and heartbeat if there are a lot of people.

(See discovered list at the bottom for more!😀)

Personality: Smart, kind, thoughtful. Often clingy to certain people. Silent & mysterious to strangers but sociable to her class and teachers. An introvert, imaginative, logician, mediator. Calm always and helpful. A calm strategist, even in the middle of fighting. Blunt.

Likes: Music, night, photography, singing, dancing, drawing, writing stories, poems and songs & training. Peace, night walks, sunset.

Dislikes: Noise, someone touching her camera & Mineta not respecting her personal space.

Relationships:
UA
Class 1-A: She gets along with everyone while everyone gets along with her as well. She is always willing to help them. She is loved mostly by everyone in her class(also in Class B)

Midoriya Izuku
She got along with him well immediately on the first day. She often calls him "Izuku". She and Izuku both have the habit of taking down notes about the others' quirks. They often train together as well, and she sometimes drop hints about Ochako's feelings to him but always receiving a confused look. Izuku is the first person who convinced her to let her vampirism run free and not bottle it in. He found out the pain of enduring blood thirst during battles. During the final competition in the sports festival, Katsuki is the first human she bit, and drank blood from.

Uraraka Ochako
They get along super well. She supports Ochako when it comes to Izuku, and knows about her feelings towards her.

Ida Tenya
She respects Tenya's determination and politeness. The two got along on the first day, seeing on how determined Tenya is in being a hero. She got worried when she heard about Tenya's brother. She joined the fight against Hero Killer along with Izuku and Shoto.

Bakugo Katsuki
At first, she didn't enjoy him much, however, during the Cavalry battle in the Sports festival, Bakugo chose her to join them, making their team having 5 members. (She ranked 2nd, tie with Bakugo in the race) She started calling him Katsuki after that, and got closer to him when they fought at the final competition of the sports festival. She is often with him and Kirishima ever since that. Bakugo starts seeing her as a great friend too, got closer to her. A lot of people in class assumed that she has feelings for Katsuki but she really does just care for him. She is one of the most frustrated people when he was kidnapped. She joined the rescue mission too. She also admires his drumming skills. During the final competition in the sports festival, Katsuki is the first human she bit, and drank blood from.

Kaminari Denki
She enjoys spending her time with Kaminari. Often calling him Kaminari. She also likes Kaminari's guitar skills. She loves how Kaminari having respect for girls despite being a pervert, she loves how Kaminari knows the boundaries. She tutored him before the exams(an hour before exam time) which surprisingly helped him alot.

Kirishima Eijiro
She got along with him right away at the first day. He was the bridge to her friendship with Bakugo. He suggested her to Bakugo in the cavalry team which she and Bakugo agreed to. The two started befriending Bakugo afterwards. She also tutored him along with Katsuki before the exams.

Yaoyorozu Momo
She was recommended to UA along with her. The two have a great friendship. She greatly admires on how cute Momo can be. She calls her Mo-chan. She is oftenly teased by Momo when it comes to boys, considering on how clingy and sociable she is to the class. Momo often sees her greeting the boys with a hug and handshake and smile.

Asui Tsuyu
She loves Tsuyu's cuteness and they got along so well. They support each other alot.

Todoroki Shoto
She is recommended along with Shoto and Momo as well. She calls him "Shoto". She is the first person in class whom noticed that she doesn't have a great relationship with his father. She supports him a lot, and is always there for him, willing to listen to him. She bravely asked Shoto during USJ attack at the land area about his relationship with his father but soon disregarded it. She built a close friendship with Shoto afterwards. The whole class also assumed that she is inlove with him and this time, she was confused of her feelings with him. Shoto is one of the many people who understood her past and her wanting to talk, especially how she views the world. He doesn't judge her for that and neither does she judge him. From the emotional support she receives from Shoto came to the confusion of her feelings since she is still in love with her childhood friend.

Teachers in UA: She respects all teachers and always keep in mind their advices to her.
Midnight
Midnight took her under her wing. She became her personal mentor and would train with her in free time.

All Might
Yukina admires All Might's sense of justice and kindness.

Villains:
Shigaraki Tomura
He is her childhood friend. In their childhood, despite the 4-5-year age gap. Before Tomura was found by All for One, Yukina first found him. She offered him food which only resulted to Tomura decaying the bread she offered. She decided to feed him, since she didn't want him starving. As much as she wants to bring him to her home, she can't. So everyday she visits on the same place they met, and during those days, she starts preparing a secret room in her own bedroom for Tomura to stay in. She also knitted him gloves so he can freely touch her. During those days, she fell inlove with Tomura. She told him and his friends(without saying the name) that his eyes are beautiful, and what made her fell in love with him. Yukina always sings a certain song to Tomura which he memorized and sang time to time. On the day Tomura was found by All for One, he left a special note for Yukina. Yukina found this letter and cried. They weren't even able to catch each other' real names, Tomura calls her Yoki while she calls him Blue. After years, they met again (USJ attack)but can't seem to recognize each other. However, Yukina had find Tomura's blood scent and heartbeat familiar to Blue and had denied it constantly that he is Blue. The night where they were saving Bakugo, when Tomura was sent to the warp gate forcibly, she caught a glimpse of his eyes reminding him of Blue(Tomura) and she found his eyes beautiful as well, instinctively calling out to him, "Blue!" As the warp gate closed and she retreated.

Toga Himiko
Yukina calls her a fellow bloodsucker. During fights, the two will talk cheerfully with a smile while attacking each other. She praises Toga's fighting skills while Toga praises her vampire reflexes. Toga was the first villain who found out about Yukina's connection to Tomura leading, leading her to wanting to blackmail Yukina, but always ends up not to. Toga thought that Yukina would make a great villain while Yukina thinks that Toga is a wonderful and mysterious person that piqued her interest in her. Nonetheless, the still treat each other as enemies.

Rest of LOV members
Yukina praises on how smart they can be but it doesn't mean she likes them. However, she wishes to see the world on their view and understand why they chose to act like this.

Pro-heroes: Yukina respects each hero. But she doesn't sometimes like if that hero is only doing heroic things if there's a camera or whatnot. She despises a few pro-heroes but doesn't show it.

Her Family's hero agency(Yoru Family)
She took her internship there.

Ryukyu
She took her work study along with Uraraka and Asui there.

Family: She isn't much close to her family. Her family came from a long line of heroes and her parents taught her how to be a hero. Her father taught her how to control her vampirism. She was called, 'Perfect Heir'. She has a sister whose a pure vampire but was later killed by the other pro-heroes wjth her parents joining them in killing her sister.

Backstory:
Her Mother came from a line of family that is somehow involved in seven whatsoever. All she knows is that her mom's quirk is Seven Worlds that is somehow related to time. Her father came from line of family that has mutated quirks, atleast that's what the government said. It started off as a mutated quirk then later on became a natural part of their bodies. Her parents gave birth to her older sister, a pure vampire and Seven sins quirk. But being a pure vampire is hard. Her sister went on rampage and berserk and people started calling her a monster. Everyone tried to kill her sister. Yukina was upset when her sister died just because she went on rampage unintentionally. She didn't understand why the people called her sister a monster or villain when they haven't even seen her sister's past and somewhat. Her parents didn't seem to mind the death of her sister. Constant trainings, day & night, her parents reminding her not to ever drink human blood if she doesn't want to end up like her sister. She wasn't allowed to drink human blood, she is only allow to drink vampire blood. Thus, leading her to a perfect control in thirst(she already has control butnot too good).

On that day, she hated the terms used, Hero and Villain(the word itself, not the people). It was also pounded in her head, that she will never even drink a single drop of blood during battles because of the dark past about her sister, which is bad cause she needs the blood to replenish her strength in battles. She drinks vampire blood after every worn out battle which is a very bad habit for a half vampire like her. The fear of being seen as a monster lingers in her.

Her family's main house and agency is somewhere in Tokyo. They have an agency branch and apartment in Shizuoka. Yukina is currently living in the apartment accompanied by her mother. Her mom recommended Yukina to UA. She decided to hide her dark mysterious past to all of UA by a mask, covering her vampirism past. The very first person in UA who broke through was Shoto, followed by Izuku then Bakugo.

Future:
- In her apartment alone, the night, after rescuing Bakugo, Tomura pays her a visit and will be talking about the incident of her calling Blue.
-She will stop the habit of not drinking blood in battles. She will be relying on her vampirism mostly to give time for seven elements quirk.
-She will be conflicted in her feelings.

Possible future scenarios:
-It is possible that she will choose to be with Tomura and the rest of the LOV over her classmates in the future(possibly around the time when the heroes attacked the Paranormal Liberation while Shigaraki is still asleep)
-She will inform her decisions on specific people from her class and will trust them. She will communicate with those people only if she ever chooses Tomura.

Love Interest: Todoroki Shoto-mainly
*Shigaraki Tomura*-formerly

Rivals:
Ida, Midoriya, Bakugo, Kirishima, Kaminari, Todoroki, Tokoyami, basically almost everyone in Class 1-A. Nonetheless, she is still friendly to them and vice versa.

Friends(also acquaintances):
Class 1-A, Kendo(but might be ruined if she chose LOV), Hado, Mirio, Amajiki, Ryukyu, Midnight, Shigaraki Tomura, Toga Himiko, Twice(before she even chose LOV), Hatsume, Eri & Kota

Note: Dabi and Spinner are one of the members of LOV that do not trust her when she chose them.(if she ever will)

Others:
1. For her vampire side quirk. It's part of her naturally. It is one of her strongest sides but her weakest sides. In what way? Simple. She's too dependent on blood. She's half vampire. Just because of her half vampirism doesn't make her stronger than All Might and All for One. She is weaker than the two.
2. Her self-healing has limits. She discovered and named it at the Summer training. It sometimes stops or slows down big time. She first experienced this at the USJ attack when Nomu attacked her. How? She got distracted when she familiarized Blue's scent and heartbeat from Tomura. Her limbs were torn off, well, she chose to. She ripped her own limbs off when her arm was decayed by Tomura after Nomu attacked her.
3. Monoma had grown very suspicious of her. He had brought up the topic of USJ. He thinks that Yukina is a spy because of certain things.
4. Everyone had grown suspicious of her during the dormitory system. She has been mostly leaving the dorms, hopes of meeting Tomura.
5. Class 1-B lost their trust to her. When? After the summer training. How? One of them saw her casually talking to Dabi while dodging his fire.
6. Other classes in 1st year don't like her that much.(started at Sports festival) Especially general courses(except for Shinso, he's neutral to her). Why? One, she's a half vampire. Two, one of them overheard her sololiquiy or monologue talking about how she feels for Tomura.
7. Bakugo is one of the people that she trusted the most. He was the first one who found out about Shigaraki and Blue are the same person. The day Yukina chose the LOV and Tomura was the day Bakugo felt frustrated once again. Not only Izuku got hurt, but Yukina had chosen to leave UA.
8. At the Kamino incident, she discovered another limit. She has to drink blood from time to time and must not let herself reach the thirst limit. One, she might die. Two, she might go on rampage. Three, she will be in her weakest state.

9. When Izuku left UA, he went out to search Yukina as well. Yukina got accidentally separated from the LOV, thus meeting Izuku again. The two worked together in finding Tomura & AFO.

10. Bakugo and Shoto explained to Class 1-A about Yukina's situation, thus restoring the good relationship that fhe class have with Yukina. They all searched for Izuku and Yukina at the same time.

Discovered limits in the next moments:
1. Nature-bleeding of skin, blood thirst.
2. Air-lost of consciousness and blood thirst.
3. Time limits-for each element, 2-5 minutes
4. Self healing limits-can only heal after 5-10 mins interval and can only heal 3-8 light injuries.
5. Heavy injuries like fractures, concussions, damaged organs and etc. are hard to repair. She might proceed to knock out at that point(one of her most vulnerable or weakest state).
6. Too much loss of blood can lead to coma, worse, death.
7. Recovery Girl can't cure her with her quirk. Yukina has to cure herself via blood.
8. You think vampires are so strong? You're wrong. They're actually weak(possibly weaker than werewolves). They are independent in fighting but too dependent in blood. Blood almost solves each of their problems. So this makes Yukina weak without blood. No blood, no hope.
9. She is weaker than All might, nomu, All for one, Dabi, Endeavor and possibly Hawks.
10. Her vampirism is a big burden. So she can't go all out always on her seven elements. Going all out takes a lot of energy which might proceed to thirst and exhaustion. She can only go all out once a day, or maybe once a week. Either of the two. 20 seconds to 2 minutes time limit for all out.

In total, her vampirism is just natural support.

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Optional things(up to you if you'll follow it):
- Some students in Class 1-A judge her personality: Yaoyorozu(her too nice attitude and clingyness. Yaoyorozu told her about that), Tokoyami(nice personality. He had confronted her that her too nice personality is her weak points, he didn't like it too much), Kaminari(her clingyness accidentally put his hopes up. He told her about it saying that he doesn't like how his hope are put up), Bakugo(her clingyness and too nice personality, he told her about this), Mina(too nice personality, she told her this), Kirishima(her clingyness. He confronted her about this) & Ida(her too nice and clingyness. He told her about this on how some people get uncomfortable with that kind of attitude) Even though with these people judging or not liking that part of her, they still remained friends or acquaintances. But things changed when she chose LOV.
-General courses and support courses didn't like her that much.
- No vampirism, then Recovery Girl's quirk can help her.
-Each element time limit: 2-5 minutes.
-Usage of two elements at the same time: 1-3minutes.
-Use of three or more elements at the same time can cause body pain, fatigue, coughing blood and lost of consciousness(if vampirism is not part)