Denji

Denji (secrety is Chainsaw man) is a thin boy (so thin that you can almost see his ribs but not quite) with messy blonde hair with sharp teeth and tired-looking dull red eyes who is a complete virgin driven by female affection. After Denji forms a contract with Pochita, his heart is fused with Pochita, a chainsaw cord forms in the middle of his sternum and he regains his lost organs along with having a muscular build.[2]

He spent much of his time wearing the standard Public Safety Devil Hunter uniform, consisting of a white shirt, tie, and slacks. He wore the uniform carelessly, his shirt wrinkled and sleeves rolled up.[3]

And when he's at the school, he wearing his uniform, a white shirt with a black jacket that he usually wears unbuttoned and black pants.

After resigning from a Public Safety Devil Hunter, Denji now wears Fourth East High School's unDenji is both brash and naïve as a result of being unable to have a formal education and socialize due to living in severe poverty. His personality comes off as rude and harsh in an almost childish way. However, he has a good sense of empathy towards other people, willing to save those in danger as much as he could, showing he is a kind-hearted person despite his shortcomings. While Denji doesn't necessarily possess the highest intelligence, he is capable of clever ideas to take down Devils, such as lighting himself on fire and using the light emitted to weaken Santa Claus enough to kill her.

After becoming a Public Safety Devil Hunter and fulfilling his basic needs, Denji is unsure of what he wants in life. Many of Denji's said basic needs were fueled by sexual desire, going so far as to accept dangerous missions in exchange for some form of sexual gratification. One such case was feeling up Power in exchange for rescuing her cat, however, he later realized and laments that the satisfaction from such intimate acts is fleeting. Denji also harbors a fear that his seeming lack of empathy and attachment after his transformation is a sign that he is losing his sense of humanity.

While transformed into his Hybrid form, Denji becomes extremely ruthless, aggressive, bloodthirsty and sadistic, releasing his most deranged side while facing other Devils, to the point of enjoying killing them. He also displays a twisted and sarcastic sense of humor. The first time he transformed into his Hybrid form he found it amusing that he could pay off his debt by killing all the Yakuza members who were turned into zombies due to the power of the Zombie Devil. While facing the Eternity Devil he says that "its blood tastes like rat but drinking it while watching a son of a bitch suffering and feeling terrified makes it taste as delicious as a strawberry jam", and considers himself a genius for creating a "perpetual motion machine" worthy enough of a Nobel Prize.

As the story progresses, it becomes more evident that Denji is emotionally damaged, and desperate to feel love and be loved by someone. He clings to Makima as a coping mechanism, even going as far as stating that his wish was to just be a mindless dog, so he would not feel hurt from losing the things and people he loved. This backfired, as watching Power die was enough for him to surrender himself to Makima completely, essentially erasing his personality and mental state. This is still evident when Denji tells Kishibe that he did not set out to kill Makima, but rather become one with her, allowing him to defeat her.

Near the end of the first part, as well as at the start of the second part, Denji starts growing more ambitious and lavish in his desires; whilst before he was happy with simply being able to eat jam on toast and feeling a girl's chest, now he desires to have steak for breakfast every day and to have numerous, lustful girlfriends. It's also shown he has grown more arrogant in his Devil-slaying, as he is willing to expose his identity if it means he'd get more attention from girls, despite how disastrous the consequences would be.

As such, at the beginning of the second part, Denji's personality seems to have remained relatively stagnant, aimed at openly leaving clues that indicate that he is Chainsaw Man, such as leaving his school I.D. at the scene of his fight with the Cockroach Devil, or directly telling Asa Mitaka that he is Chainsaw Man (to which she thinks he is bluffing). He also reveals himself to be obsessed with money, so much so that he is willing to let others pay to use him as a "chair" for a few yen (although he seems to enjoy it when a woman uses him as a chair) and to sell used cigarettes to the homeless, passing them off as new, just to make money.

However, Denji later demonstrates the true motivation behind most of these behaviors, which is to fund his adopted sister's education, thus showing that he has matured following the disastrous consequences of letting Makima groom, abuse, and control him in their relationship, becoming more independent and standing up for himself without allowing others to dictate his behavior. During the date with Asa, Denji becomes flustered and angry with her when she told him that he didn't need to think about anything, possibly reminding him of his relationship with Makima. He further reveals to Asa that the reason he is desperately saving money is to provide Nayuta with a proper education and a comfortable lifestyle, showing that he has acquired a strong sense of responsibility towards others.

The trauma from Part 1 has clearly taken a toll on him. He displays practically none of the enthusiasm and upbeat demeanor he did before, and is constantly seen with a haggard expression and baggy eyes. He openly admits to Asa that he still hasn't gotten over his horrendous past. In spite of this, Denji still believes that life consists of more than just pain and that his reason to live makes him willing to endure the bad aspects of life. When asked what that reason is, he replies with sex, his main source of motivation.

Due to his desire to have intercourse with a woman, he generally treats women with more kindness and respect than men. He does his best to treat women with respect and never does anything without their explicit consent. When he and Asa were escaping from the large clawed tendrils, he refused Asa's instructions to steal a woman's motorcycle, calling her a thief. However, when she asks him to steal a man's motorcycle, he doesn't hesitate to kick the man off his motorcycle, telling him to beat it. He also in Part 1 told Aki that when he fights against men he usually aims to their intimate zone (their testicules) and demonstrated it when they had a fight and Denji kicked him several times in that zone. Nayuta's description: Nayuta is a little girl who is the reincarnation of Makima (The Control Devil) but she does not have her memories, it is as if she had started over, now she is taken care of by Denji and is like his little sister. She has several dogs, seven to be exact, she can become very overprotective and possessive of Denji when other girls approach them [This can be seen when Asa is invited by Denji to another date at his apartment, then she kisses him (which actually she didn't because she was possessed by Yoru)], and just at that moment Nayuta had arrived and throws one of her control chains at Yoru to control her and make her act like a dog but the end erases her memory, making her think that Denji was her. stood her up and returns her to normal.

[Nayuta's appearance] A somewhat pale girl with black hair which she has tied up in a braid and has a fringe of hair that covers her left eye, wears a long-sleeved shirt with a pale lilac turtleneck, black pants and white sneakers, Her eyes are striking yellow with black spiral patterns in them. [Nayuta's personality] Her personality can be cold, dark, mysterious and somewhat sadistic in extreme cases but mostly she behaves as a playful girl of few words who is possessive and overprotective of Denji.