Aki Tsukishima

"*Shut up! I don't care about that anymore! Don't you get it? That hatred has faded!* "

**Aki Tsukishima** (月島秋 *Tsukishima Aki*), previously known as **Sin** (罪 *Tsumi*), currently known as the **Fever Hero: Pyromania** (フィーバーヒーロー 放 火 癖 *Fībāhīrō Hōkaheki*), is a student in Class 1-A at U.A. High School, training to become a Pro Hero. She is one of the deuteragonists of *My Hero Academia*.

## Biographical Information

### Alias

Sin (罪) (previous)Fever Hero: Firebug (フィーバーヒーロー：ファイアバグ)

## Personal Description

### Age

3 (first apperance)15 (Chapters 3-4)16 (Current)

## Status

### Family

Unnamed parentsUnnamed brother

Unnamed grandparents

Keigo Tamaki (Uncle/Caretaker)

### Fighting Style

Melee Combat Close-quarters Mid-range Combat

## Appearance

Aki is a girl of average height and a slender build. She has messy, unkempt hair greyish-purple in colour kept often in a low ponytail. Her eyes are sharp and slanted in shape. She also possesses heterochromia iridium, which causes her left eye’s iris to appear a dark purple, while her right is crimson in colour.

At school, she wears the regular male school uniform. However, her blazer and her pants seem to be a few sizes too large, causing them to sag down.

Her hero costume consists of a long sleeved, armoured black leotard, with a flame shaped decoration just above the chest. She wears leggings that have been shown to be either black or white, and sports maroon boots with armour plates that end above the knee. The soles of the boots are donned with rather large support equipment, allowing her to produce more controlled bursts of hot wind to aid quick levitation. Support items on her gloves assist with aiming her quirk. Occasionally around her waist hangs one or two loose utility belts that contains first aid supplies and candy. She wears a white scarf that is tied at the back with two long semi-transparent orange ribbons that reaches her ankles.

The armour plates on her costume are support systems that regulates her temperature.

Later, she wears a dark red visor that is looks identical to the one pro hero Hawks wears.

## Personality

People who get to know Aki describe her as "an unexpected character". She is rather blunt when interacting with others, reacting differently depending on the person. Aki comes off as cold and unapproachable at first but is shown to be usually well-meaning.

Aki describes her stoic, aloof persona as "a test of sorts, for evaluating new people", which stemmed from complicated friendships in the past. She warms up and shows more emotions towards people who don't give up their attempts of befriending her despite her stoic front, deeming them as someone who will never leave people behind. However, as time goes by, Aki begins to open up more to her classmates in general, slightly more content with showing vulnerability. Nonetheless, Aki still has the habit of testing others before trusting them.

Despite her verbal banters with Katsuki Bakugou, she is shown to have low self-confidence, and is very likely that she has developed both an inferiority complex and a superiority complex. Her low self-confidence is most prominent in combat situations, causing her to think of multiple scenarios and how to solve them in her head at once in panic. Aki has found a way to use this and her training to predict what her opponent is about to do.

Aki's only motivation toward her path to be a hero was a deep loathing of one of her old friend groups, who had excluded her from everything suddenly. As such, Aki decided to become a successful hero who could be easily recognised, so that they will wallow in painful regret every time she appears on the news. Her sadistic motive is further fuelled by hanging out with the "wrong kinds of people" in primary school.

In terms of heroism, Aki has demonstrated that she was willing to disregard all ethics and morals to get what she wants, stating that although Shoto Todoroki was opposed to killing his opponents too gain information, she was perfectly fine with using more painful methods such as cooking the villains alive. Although she usually has a hostile approach, she has been shown to internally panic and worry over allies and civilians when they are in danger.

Aki tends to disregard the notion that Quirks shouldn't be used in public, much like her classmate Katsuki Bakugou and will activate her Quirk for a number of reasons, but mainly to intimidate someone. Overall, Aki seems to usually disregard what others think of her, barely containing herself from describing violent behaviour. This aspect of Aki resembles Katsuki Bakugou, although unlike him, she has partaken in delinquent activities in the past.

During her time captured by the League of Villains, she reveals that she has had a change in heart during the time she has spent with her classmates, and that she no longer holds as much resentment towards those who she believes have wronged her. She states that she has forgotten herself during the years of bitterness, and is unsure of what she truly wants - except that kind-hearted people like her classmates will never be hurt in any form.

## Abilities

**Overall Abilities:** Having being trained by her uncle Hawks and some of the HSPC, Aki has often shown to be one of the strongest members of Class 1-A, sometimes on par with one of the top students, Shoto Todoroki. Aki's skills granted her 3rd place at the U.A. Sports Festival. Aki has developed incredible efficiency with using her Quirk: Calokenisis, using it for both attack and defense, long-range and close combat even aid in rescue operations.

During the Sports Festival, she was able to render Ibara Shiozaki unable to move. Observing this spectacle, Izuku remarked that Aki is one of the strongest people when it comes to creative thinking. Later on, Aki managed to hold off Shoto, another one of the Class 1-A's strongest members, for some time despite having a Drawback-type disadvantage, and facing repercussions of her inability to handle cold weather.

During the Provisional Hero License Exam, Aki used the advice given to her by Hawks, and the experience gained in the Final Exams to create "Absolute Zero," a Super Move which delays her Quirk's drawback. She was able to accomplish a rather controlled result within a week of intensive training. Due to the work-study training she received from Hawks, Aki improved her Quirk to the point where she is able to hover and "fly" (although this drains much of her energy.) Aizawa has expressed surprise, remarking that she has massive potential.

* **Enhanced Reflexes**: Aki has incredible reflexes. Despite her slow running speed, Aki was still able to block most of her opponents attacks during all of her battles without much thought.

**Keen Intellect**: Aki has proven to be a very intelligent person. Aki is also very skilled in academics, having scored 7th place in the midterms. During the U.S.J. Incident, Aki immediately deducted that most of the invading villains where only there to prevent the students from interfering with their main goal. At the same time, she correctly guessed their goal. Her assumption was proven correct as the villain's goal was to kill All Might. Shortly before the Hosu Incident, Aki recognised the look of anger in Tenya's eyes, and easily surmised that he was only taking up an internship in Hosu City to seek vengeance on the Hero Killer: Stain, although she made no move to stop him. After the Hosu Incident, she correctly guessed that it was Izuku, Shoto and Tenya who were the ones to capture the Hero Killer: Stain, not Endeavour, as the news stated.

## Quirk

**Calokenisis** (カロケニシス *Karokenishisu?*): Aki's quirk allows her to control heat, generating vast temperatures from any part of her body, and withdraw heat from a large area to herself. Aki's quirk also grants her high resistance, or immunity, to heat.

Her quirk is suited for fighting a large amount of opponents at once, as she can affect people within a large radius through the ground or the air around her. Her applied use of Calokenisis makes it suited for close quarters combat, as the smaller the radius of her quirk, the stronger it becomes. Aki has a strong grasp on the applications of her Quirk, as stated by Hawks. It was also mentioned that her quirk was originally not suited for combat, as large scale use of her quirk was highly uncontrollable. In spite of this, not only can Aki use her quirk for attacking but she can also use it to propel herself into the air at high speeds, allowing her to fly for short distances. The time taken to melt metal with direct contact is estimated to be less than a minute.

Although Aki's quirk seems to be well rounded, Calokenisis is incapable of producing aimed attacks as it can only spread within a certain radius. The only exceptions to this is when Aki forces the heat from the back of her throat so that it is shaped by the inner walls of her mouth, or with the help of support equipment. The main drawback of Aki's quirk is when she goes past her limit (generating vast temperatures for too long/ forcing a vast temperature in a short amount of time) her quirk will start sapping away at her own body temperature. The reason for this is theorised that once the quirk is past it's limit, it substitutes Aki's own body temperature and amplifies it. (Estimated 1° body temp = 150° converted into power) This means that within five minutes of overusing her quirk, Aki will be subjected to extreme Hypothermia. The only way to negate this weakness is by occasionally withdrawing heat from her surroundings into herself, although that is not recommended as it is highly uncontrollable.

As part of her training, Aki was made to sit in a barrel of water within Shoto Todoroki's quirk radius, and alternated between producing and withdrawing heat to regulate her body temperature and the water, as Shoto's quirk repeatedly froze the water and thawed Aki out from hypothermia. Due to this, Aki has developed a reasonable control of withdrawing heat and accustomed her body to withstand colder temperatures.

## Super Moves

**Dragon's Roar**: Aki forces a large amount of heat from the back of her throat so that it is shaped by the inner walls of her mouth. She can direct this at her opponent, which can result in severe burns when used during close combat, or make her opponent take a considerable amount of damage. The first time this move was used was during the sports festival in her battle against Shoto Todoroki but is unnamed until the Super Moves training sessions. She also used this attack on a repeatedly massive scale while fending off Muscular.

**Absolute Zero**: Aki withdraws heat from her surroundings by a massive scale, leaving her anything affected brittle and frosted. All the heat Aki withdraws is stored within her until her surroundings thaws out with her help or on its own. She is able to withdraw heat from living things too, using this in the Provisional Hero License Exam. Immediately after Inasa eliminated 120 other examinees, she walks out of her hiding place to lower the examinees (who he missed) core temperature to 33°, causing them to all fall into a stupor and collapse, so that she has the chance to pass without much resistance from her opponents.

**Burn Out**: Aki makes a large radius around her heat up, making her opponents actions sluggish and suffocating. This is both a defensive and offensive attack like her technique Absolute Zero.

**The Floor is Lava**: Unlike her super move Burn Out, Aki focuses on heating up the ground. The affected radius of this technique is larger as there is less area to cover than the air around her. Any opponent who does not have the ability to fly or remove themselves off the ground will have to jump around like popcorn because this technique can melt the soles off shoes at a rapid rate.

## Stats

Aki's stats, according to the creator.

Aki's stats, according to the Ultra Analysis Book
## Equipment

**Hero Costume**: All aspects of Aki's Hero Costume were made for the sole purpose of helping Aki minimising the negative effects of her Quirk. She originally wanted her hero costume to be baggy, but after a friend helped her with designing her hero costume, Aki decided to keep the skin tight aspect of the costume as it allows her to move faster.

* **Armour Plates**: Armour plates that start from her chest that lead down in a singular scale-like column are capable of sensing Aki's body temperature and heats up accordingly. These armour plates are also present on her boots from the knee-down, and on her leotard from the elbow down.

* **Explodo-gauntlet;Ultra-compact** : This device is a gauntlet that stores a small amount of gasoline that shoots out like bullets from above the finger. Aki can make that explode with her quirk after she shoots. The device was originally thought of by Aki when she was younger, although this is the only version that works.

* **Aim Aid**: These are devices that help her aim with her palms. They are usually concealed, as they are inside the Explodo-guantlet, but the covering slides away if Aki heats up her wrist twice, quickly.

* **Super Soles**: The soles of Aki's boots converts her quirk into extremely powerful hot wind gusts that is powerful enough to lift Aki into the air. With these boots, Aki can use less of her quirk to fly and control herself a bit better in the air. The soles at the moment are extremely thick, as it is only a recently invented device.
* **Utility Belt**: Sometimes Aki wears them, sometimes she only wears one, sometimes she doesn't at all. These Utility Belts are filled with first aid for injured civilians or heros and candy and chocolate for children.
* **Visor**: This visor is physically identical to the one Pro Hero Hawks wears, although dark red in colour. This visor enhances her vision and can zoom in to pinpoint something up to 50 meters away. This makes up for her originally bad eyesight. The Visor can also be used to watch the news broadcast channel and communicate with the people she works with.

## Battles & Events

### Battle Trial Arc

* Battle Trial
	+ Fumikage Tokoyami & Aki Tsukishima vs. Eijiro Kirishima & Hanta Sero

### U.S.J. Arc

* U.S.J. Incident
	+ Aki Tsukishima & Shoto Todoroki vs. Villains
	+ Ono Kayoko vs. Nomu
	+ All Might & U.A. Students vs. League of Villains

### U.A. Sports Festival Arc

* U.A. Sports Festival
	+ Obstacle Race
	+ Cavalry Battle
	+ Aki Tsukishima vs. Mina Ashido
	+ Aki Tsukishima vs. Ibara Shiozaki
	+ Aki Tsukishima vs. Shoto Todoroki

### Final Exams Arc

* First Term Final Exam
	+ Team Mineta & Sero & Tsukishima vs. Midnight

### My Hero Academia: Two Heroes

* I-Island Incident
	+ U.A. Students vs. I-Island Security Bots

### Forest Training Camp Arc

* Class 1-A Swimming Competition
* Quirk Training Camp
	+ Class 1-A vs. Pixie-Bob
* Vanguard Action Squad Invasion
	+ Aki Tsukishima vs. Himiko Toga

### Hideout Raid Arc

* Kamino Incident
	+ Aki Tsukishima, Origin (flashback)
	+ Katsuki Bakugo & Aki Tsukishima vs. League of Villains

### Provisional Hero License Exam Arc

* U.A. Recommendation Entrance Exam (Flashback)
* Provisional Hero License Exam
	+ Inasa's Hot Blooded Battle
	+ Gang Orca's Invasion

## Trivia

* In the prototype concept, Aki Tsukishima's quirk was supposed to be Shadow Body, but this was scrapped because the author found it to be too overpowered for a kid who is supposed to be afraid of getting hurt. The quirk, with the original name, was given to a friend of Aki's that lives in Australia.
* Aki changed her last name before entering U.A., as her original last name was created by her newly immigrant parents at the time, and did not make sense. Despite the change, Aki prefers her original name.
* Aki's last name before she entered U.A. was "Tsuki" Her original name means "Autumn Moon", whereas her new surname turns that to "Autumn Moon Island".
* According to Aki's profile in Volume 4:
	+ Her favourite drink is coffee.
	+ Her favourite things are intimidating people and anime
	+ Her hair is nearly always messy

* Aki's known U.A. data is as follows:
	+ Student No. 17 in Class 1-A.
	+ Ranked 17th during the Quirk Apprehension Test.
	+ Ranked 7th in Class 1-A's overall grades.
	+ Ranked 3rd in the U.A. Sports Festival First-Year Stage.
	+ Aki received a total of 361 nominations from Pro Heroes for his U.A. Sports Festival performance, making her the 3rd most nominated Class 1-A student, beating Tokoyami by one nomination.

* There is a possibility that one of Aki's super moves, "Dragon's Roar" was inspired by shounen anime called "Fairy Tail"

## Quotes

(To Katsuki Bakugou) "...so you made it in, first place too...huh."

(To Mina Ashido and Denki Kaminari) "Back off."

(To Mina Ashido) "You seriously won't leave me alone, huh. Jeeze... alright, I'm Tsukishima. Call me Tsuki."

(To Villian in USJ) "Unlike this guy who doesn't wish to kill you... lets just say, that I don't mind finding out how long it takes to cook human flesh."

(To her classmates) "Freaking hell. Y'all okay?"

(To Shoto Todoroki) "My quirk is perfectly conditioned to fight against yours! ... huh, you wouldn't know if I was bluffing, Mr-detached-from-the-class!"

(To Tenya Iida) "Even if resentment clouds your vision, if your goal is to be a hero, you cannot try kill a person!"

(To Hawks) "I'm the biggest hypocrite out there."

(To Himiko Toga) "Am I the one who influenced you to this?"

(To Himiko Toga) "Shut up! I don't care about that anymore! Don't you get it? That hatred has faded!"

(To Himiko Toga) "... Don't suddenly go missing with a bunch of freaking suspected murders! You know how worried I was? Shut you goddamned mouth, I've missed you so hug me back already!"

(To beat-up student (flashback scene)) "There are people in the world who are like leeches. I'm one of them. And frankly, I don't care."

(To beat-up student (flashback scene)) "What's my role in this group? Let's just say, sin comes in weak quantities."

(To Himiko Toga) "In the midst of my hate, I've forgotten myself. I'm floating in nothingness. But I think, there are people worth saving... was that too dramatic?"

(To Tomura Shigaraki) "Don't get me wrong, I'm still not joining. But who's console is this? ... "

(To Touya Todoroki) "Your vibe is a total mood"

(To Inasa Yoarashi) "Back off."

(To Inasa Yoarashi) "...You have big shoulders."