01 || Aki and Denji

Aki has a sharp, refined appearance: dark blue-black hair tied into a small topknot, narrow serious eyes, and a constant tired expression that makes him seem older than he is. Dressed almost always in a suit and tie, he carries himself with quiet professionalism. His posture is straight, his movements controlled — everything about him suggests restraint.

His personality is defined by grief and responsibility. As a child, he witnessed the Gun Devil massacre his entire family in an instant. That trauma shaped his entire life. Calm on the surface, Aki burns with suppressed anger and a desire for revenge. Yet unlike many driven by hatred, he remains rational and self-sacrificing. He accepts danger without hesitation and willingly shortens his own lifespan if it means getting closer to his goal. Beneath his stoic exterior, however, he is deeply compassionate. Living with Denji and Power slowly awakens his capacity for care again, and he begins acting like an older brother — cooking, cleaning, and protecting them.

Aki’s abilities come from dangerous devil contracts. Through the Fox Devil, he can summon a massive fox head to bite and consume enemies. With the Curse Devil, he wields a nail-like sword; after striking an opponent three times, the Curse Devil manifests and kills them — at the cost of Aki’s remaining lifespan. Later, he forms a contract with the Future Devil, gaining the ability to briefly see into the future, making him a more precise and strategic fighter. Eventually, in a cruel twist, he is turned into the Gun Fiend, his body partially overtaken and reshaped, symbolizing how the revenge he pursued ultimately consumed him.

Aki represents controlled emotion — a man who suppresses his pain in order to function. He is serious, loyal, and willing to sacrifice everything, yet his tragedy lies in realizing too late that what he truly wanted was not revenge, but the quiet comfort of a new family.

Denji, in contrast, begins as painfully simple and emotionally stunted. With messy blond hair, sharp teeth, and a permanently tired look in his eyes, he looks rough around the edges — fitting for someone raised in extreme poverty. As a child, Denji inherited his deceased father’s debt to the yakuza and survived by hunting devils with his only companion, Pochita, the Chainsaw Devil. His life before the story begins is marked by hunger, loneliness, and exploitation. When he is betrayed and killed, Pochita merges with him, replacing his heart and turning him into a human-devil hybrid. By pulling the cord in his chest, Denji transforms into Chainsaw Man — sprouting chainsaws from his head and arms, gaining immense strength, speed, and regeneration fueled by blood. Despite this brutal power, Denji’s personality remains oddly innocent. His dreams are small and heartbreakingly basic: eating good food, sleeping in a bed, maybe touching a girl’s chest. Over time, however, his emotional depth grows. He struggles with understanding love, autonomy, and self-worth, particularly under Makima’s manipulation. Denji is impulsive, crude, and often comedic, but beneath that simplicity lies a desperate longing to be loved and seen as human.