Kitsune Physiology

**Kitsune Physiology** (狐生理機能, *Kitsune Seirikinō*?) is a Quirk created by the fusion of multiple Quirks via All For One's ability before bestowing it upon Kiseki Kasumigaoka. It is the first Super-Quirk introduced in *My Hero Academia: The Rose of Blood, Sweat, and Tears*.

## Description

As implied by the name, this Quirk mutates Kiseki's body into that of a *kitsune*, a fox spirit. She grows fox ears and loses her human ears; she also manifests one tail that will slowly multiply into nine as she grows older with the number of tails indicating her current power. Unlike most other Mutant-type Quirks, this Quirk remains perpetually active with all of her other abilities being able to be accessed at the drop of a hat; she is also unable to revert back to a human appearance as she is forced to retain her fox ears (her human ears have disappeared to be replaced with these ears) and tail (as she '*levels up*' her Quirk, she gains a new tail as physical manifestation of her mastery over her Quirk). The Quirk massively increases her physical parameters to the point that she is able to leave those with legitimate physical-enhancing-type Quirks in the dust with her abilities.

As a fusion of multiple Quirks, Kiseki has a plethora of other abilities granted by this mutant Quirk cultivated by All For One. She is able to manipulate **Foxfire** (狐火, *Kitsunebi*?), using it for offensive, defensive, or supplementary purposes. She is also capable of manipulating dreams, create and manipulate illusions with enough power to instantly induce insanity, fly, possess others, and shapeshift. Due to it being his most precious experiment with creating a so-called '*super-Quirk*', All For One intented to use its incredible strength as a way to corrupt Kiseki's mind so she would stop being stubborn and join him on his quest of creating his ideal world.

## Usage

This Quirk has a wide variety of abilities but the one that Kiseki simply relies on the most is the basic physical enhancement it grants her. It allows her to perform tasks that should be physically impossible with ease even when compared to others who possess the actual physical-enhancing-type Quirks. During her solo Quirk Apprehension Test upon transferring into U.A. High, she easily shattered all previous records set by the other students of Class 1-A. With the great weight of the many duties she must perform as student body president, Kiseki oftentimes relies on her ability to manipulate illusions to create alter egos of herself to allow her to work more efficiently; she is of course capable of using them in combat but during her peaceful days in school, she mostly finds use in her Quirk in the most mundane activities.

She also often assists in Izuku Midoriya's recovery upon injuring his body from using his Quirk by manipulating dreams to ensure he receives a good night's rest. Her soul-shifting ability is incredibly useful for judicial purposes with this ability being the reason why Kiseki has been made a justice of Japan's Supreme Court; she is able to—without fail—extract a confession from a criminal by possessing them and baring their mind. More mundanely, she also shifts her soul multiple times as a practical joke against Minoru Mineta, mainly as a punishment to discipline him for his overtly perverted actions during class and elsewhere.

Kiseki is rarely ever seen actually walking as she most commonly traverses by levitating a few inches off of the ground and maneuvering in that manner. She is also able to incorporate her flight into combatand is highly talented in aerial combat. As stated previously, she is able to manipulate foxfire for a variety of purposes. Through her foxfire, she is capable of (to a very limited extent depending on what she is doing) manipulating normal fire, electricity, and light. Her ability to shapeshift is only limited by her knowledge of the object and/or person she is transforming into; if she is not familiar enough with the intended transformation target, she is unable to transform into it—and if she does actually manage to transform, it will be an incredibly obvious failure.

## Trivia

* Upon discussion with their friends, the author decided to make this a new type of Quirk known as a **Super-Quirk** (最高個性, *Saikō Kosei*?), a creation of All For One.