Aki is a character from the popular anime and manga series Chainsaw Man, created by Tatsuki Fujimoto. He works as a Public Safety Devil Hunter, dedicated to fighting devils that threaten humanity. Aki is known for his serious demeanor and strong sense of duty, often putting his mission above personal feelings. Aki has a tragic backstory, having lost his family to devils at a young age. He forms close bonds with other characters, including Denji and Power, as they navigate the dangers of their world together. His character development explores themes of loss, sacrifice, and the complexities of human emotions.