Asa Mitaka

"I wish... I'd tried living just a little more selfishly."

Аса Митака Asa Mitaka (アサ) is a high school student who became the host of the War Devil, Yoru.

Appearance
Asa is a high school girl of average build and height. She has brown eyes and black hair that is sometimes colored with a purple tint. Her hair is just past shoulder length and she wears it in two low twin tails. When possessed by the War Devil, her hair is often worn loose, multiple scars appear across her left cheek and nose, and her eyes have a spiral pattern similar to Makima's.

She wears the same school uniform as the rest of the girls in her class. The uniform consists of a long-sleeved button up shirt worn beneath a pinafore style dress with a pleated skirt that extends below the knee, a bow at the collar, a wide belt at the waist, and black, knee-high socks. She also wears sneakers.

Personality
Asa is initially a quiet and unsociable girl. She dislikes her classmates, frequently wishing they would drop dead and spurning any offers of friendship, and she would prefer to study over making friends. She dislikes all Devils as a result of her parents being eaten by one. Asa later realizes that she was truly jealous of her peers, and wanted to fit in with them as well. She wants to live more selfishly, and to have the things she desired, like friends and a boyfriend. After she becomes the host of the War Devil and gets a second chance at life, she is not as negative towards others or towards Devils like Chainsaw Man, but is willing to cooperate with the War Devil in order to achieve her own goals.

Asa is extremely self-aware that she is a clusmy individual, shown at several important points during her lifetime when she would trip and fall, most importantly when her home was destroyed by the Typhoon Devil and her mother sacrificed herself after Asa fell trying to save a cat. Asa feels guilt and incredible pain of her mother's death and the circumstances surrounding it. She can also be prone to embarrassment and becomes flustered when dealing with awkward situations, such as when she and Yoshida were partnered up together shortly after Yoru, whilst possessing her, tried to hit on him.

While possessed by the War Devil, Asa is much more loud, confident, and harsh, demanding that her targets die for her. She has no problems with executing the class president and her teacher Tanaka, and confidently declares her intent to defeat Chainsaw Man. She is also very forward with what she wants and has no problems with being direct, much to Asa's normal consciousness's embarrassment and horror.

Yoru
Yoru resurrected and inhabits Asa's body, turning her into the War fiend, but left half of Asa's brain intact, keeping Asa alive. With the two now sharing one body, Asa was initially overwhelmed with her situation and needed time to accept reality; she eventually agrees to help Yoru defeat Chainsaw Man under threat of permanent death and so long as she gets her body back after they defeat Chainsaw Man.

Because of Yoru's personality, Asa often gets put in awkward social situations, like asking Yoshida to be her boyfriend in an attempt to make him into a weapon. Despite her situation, Asa shows little to no fear towards Yoru. After being briefly intimidated by Yoru, Asa acts very casual towards the War Devil and isn't afraid to talk back or defy the devil if it demands something that she isn't willing to do.

Yuko
Yuko and Asa first met in their school's Devil Hunter Club tryout, when they were assigned to the same group. Asa was originally hesitant to befriend Yuko, mistaking her kindness for pity. However, Yuko explained her belief that she cares more about her heart being in the right place than whether or not her actions are a mistake. Asa quickly grew to like Yuko and said that spending time with Yuko was the most fun she had in a long time. Yuko's belief would have a heavy impact on Asa, who resolved to live her life the same and later refused to kill Yuko and turn her into a weapon for the War Devil. Even though turning Yuko into a weapon would have increased her own survival against the Bat Devil's assault, Asa instead risked her own life to save Yuko.

Supernatural Abilities
War Devil Possession: After having her body and half her brain taken over by the War Devil, while still retaining her consciousness, the War Devil is able to switch with Asa and gain control of her body. In this state, The War Devil is able to utilize its powers.
 * Enhanced Speed: After becoming host of the War Devil, Asa`s speed is improved to the point that she is able to move very quickly, easily jumping around and dodging attacks from the contracted Class President.
 * Enhanced Strength: After becoming host of the War Devil, Asa`s strength is improved to the point that she isable to pull Tanaka's head off his shoulders and spinal cord out of his body, requiring a great deal of force, and is able to easily carry objects as big as herself with one arm over her head.
 * Flesh Weapons: As a host of the War Devil, Asa is able to use the abilities of the War Devil to manipulate the detached body parts of other people and form them into weapons. This does not appear to immediately kill the victim, as they can still scream in pain even after having their head detached from their body. This seems to only happen when the body or body part is considered a belonging of the War Devil, either after being taken by force via being cut off and stolen, or if someone is devoted enough to the War Devil to make them its belonging.

Skill Set
Swordsmanship: Asa carries a katana as her weapon of choice, suggesting that she is capable of handling it.