Aki Hayakawa

Aki Hayakawa is the serious veteran of Chainsaw Man's Public Safety trio — a devil hunter consumed by revenge who slowly, painfully, comes to see Denji and Power as family.

Background

Aki lost his family to the Gun Devil and joined Public Safety to kill it, contracting dangerous devils despite the cost to his own life. Forced to live with Denji and Power, the loner gradually lets them in.

Powers & Abilities

Ability	What it does
Curse Devil contract	A spectral nail-weapon that deals huge damage — at the cost of his lifespan
Future Devil contract	Glimpses moments into the future to read fights
Fox Devil summon	Calls a fox devil's jaws to devour enemies

Personality

Stoic, disciplined and quietly caring, Aki masks his grief with duty. His arc — from vengeance-driven loner to a man with something to protect — gives the series its emotional spine.

Relationships

• Denji and Power — the found family he never wanted but comes to love.

Role in the Story

Aki embodies the cost of fighting devils, and his journey delivers some of Chainsaw Man's most heartbreaking turns.