Asa Mitaka

Asa is a quiet and unsociable girl, who dislikes her classmates, frequently wishing they would drop dead and spurning any offers of friendship. She has a very negative outlook on the world, other humans, and Devils, and tends to assume the worst of others. She is, however, very fond of cats and would rather kill a human than a cat. Asa later admits to herself that her mean-spirited attitude towards her peers was a result of jealousy and a lack of belonging. She also suffers from low self-esteem and considers herself to be clumsy. Despite this, Asa can be falsely self-assured and overconfident, such as her belief that she would easily be able to seduce Denji. When the public gives her the recognition she yearns for, she initially claims to dislike being popular, but then smiles while watching people on TV praising her. Asa can be extremely socially inept, so much so that Yoru, the War Devil, shows more social awareness than her despite having limited knowledge about humanity. For example, she believes that giving Denji long lectures about ocean facts on their aquarium date would be a great way to win his affection. Over time, Asa becomes a skilled manipulator, coercing Katana Man to betray Public Safety by taking advantage of his hatred towards Chainsaw Man, claiming she wants to fight Chainsaw Man herself. Despite being capable of compassion, Asa's selfishness proves to be a hindrance even when she wants to do good. When Denji woke up after his body party got reassembled, he was stressed out due to the disappearance of Nayuta and couldn't focus on anything else. Asa could relate to a family member dying because of her and tried to get him to fight "her." Upon Fami suggesting that food could change his demeanor, Asa asks Denji what he'd like to eat. When he answers with sushi, Asa refuses since she can't stand seafood. This causes even Katana Man, with his unrivalled hatred for Denji, to insult her. Her moral compass is somewhat artificial, as she is often more worried about the consequences certain actions carry instead of the actions themselves. For example, she doesn't feel bad about having accidentally killed Bucky , but feels bad because of the looks her peers gave her. This also gets reaffirmed in the aquarium, where Asa refuses to kill Denji after being trapped and starved for several days. She doesn't do so because it goes against her morals, but because she does not know what is right and wrong and constantly tries to avoid making mistakes. Asa is fairly altruistic, putting herself in harm's way to save others even when she is afraid. Asa would be willing to endure bad situations if only she were to suffer, but refuses to drag others with her. After being saved by Chainsaw Man, she realizes she's glad she's not dead and is no longer as negative towards other humans or towards all Devils. However, this was short-lived as she easily fell back into depression and even attempted suicide during the Falling Devil fight. Asa doesn't cope well with failure or when things don't go her way. Because of past experiences, she is extremely afraid of making mistakes. Once she does make a mistake, however, she usually gets very angry and blames everyone around her except herself. Though after calming down, she'll break down in self-deprecating rants. She seeks validation, as shown by her internal monologue during her meeting with Hirofumi Yoshida , or breaking down and seeking comfort from Yoru despite being afraid and screaming at her mere moments prior. She struggles with trust and fears being alone, yet also fears approaching others because she worries about making mistakes and ending up alone once more. This puts her in a "cognitive dissonance", as she puts it, where she's afraid of both solitude and companionship. She is shown to have a negative opinion of sexual intercourse when Chainsaw Man reveals his main drive in life is to have sex, and she openly expresses disgust. She believes people only have sex when there's nothing better to do, and the thought of mixing her saliva and sweat with someone else sickens her. Despite being previously shown to be very timid and frightful during Devil encounters, motivated by her desire to "save" Chainsaw Man, Asa quickly becomes a proficient Devil Hunter, seemingly having managed to become braver and more confident than before. After Pochita erases himself out of existence, thereby causing a new timeline to be created. Her personality shifts from the cynical, deeply depressed, and socially reclusive girl burdened by Yoru to a much brighter and more well-adjusted teenager. She essentially lives a completely normal, much happier life as an average high school student.

Asa is a high school girl of average height. Though initially a little skinny, she later develops a more feminine build, possibly from puberty or her increase in physical strength from being a Devil Hunter. She has dark blue eyes that are usually pitch dark, though the irises become much brighter in some situations. Her hair is black and is sometimes colored with a brown tint. The hair reaches the middle of her back, and she wears it in two low twin tails, making it appear shorter. In the past, Asa wore her hair at shoulder-length. After the events of the Chainsaw Man Church arc, Asa lost her right arm following her fight with Yoshida, and later her remaining arm during her fight with Pochita. This leads to Yoru sacrificing the Tank and Gun Devils to regain their arms while using them as weapons/gauntlets. She wears her school's female uniform, which 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. After freeing Denji from the facility, she is seen wearing a baggy top with a t-shirt underneath and black pants. Following Chainsaw Man's rampage and regaining her arms, she is only seen with a t-shirt and black pants, while letting her hair down. After Yoru runs away from Public Safety with Denji, she wears a long shirt, a dark-coloured t-shirt and pants.

Supernatural Abilities
War Devil Possession: After having her body and half of her brain taken over by the War Devil, Asa can tap into the powers of the War Devil.