Aki Hayakawa

Aki Hayakawa was the deuteragonist of the Public Safety Saga. He was a Public Safety Devil Hunter working under Makima's special squad who had contracts with the Curse Devil and Future Devil, and a former contract with the Fox Devil.

Aki was a young man with medium-length black hair that he usually wore in a topknot style (shoulder-length with long bangs when untied) and blue eyes. In the past when he and Himeno met through Kishibe and became partners, Aki used to have shorter hair. Aki looks to be in his early 20’s.

He often wore the Public Safety Devil Hunter uniform; a suit and tie. He also donned black earrings and usually carried his sword on his back.

Personality: Aki generally appeared to be a very stoic man who acted mature and sometimes blunt to the point of rudeness when he was with his fellow Devil Hunters, but he was actually fairly softhearted. He had a tendency to get attached to others easily, and hated to see people get hurt, especially his close friends. Unlike many of his associates, he was described by Himeno as being a "normal person", in the sense that he still grieved for those lost and had not become jaded enough to close his feelings off. Despite this, he was very determined and his primary motivation for killing the Gun Devil was revenge for his family. However, he was entirely willing to put his own life on the line to save other people, even if it got in the way of his goals.

Aki and Denji initially hated one another with their first mission ending up in a physical and verbal altercation, wherein Aki insults and punches Denji, only for Denji to knee him in the crotch and kick him while he's down. He thinks Denji is a simpleton, brutish, vulgar and too unthinking to continue in a dangerous line of work. Despite the fight, they continued to work together due to Makima's request. Also at Makima's request, Aki allowed Denji to move into his home and took care of him. After fighting alongside each other and living in the same household, Aki began to consider Denji a close friend, although he still found him obnoxious at times. Aki and Power also had a less than positive relationship at the beginning, although perhaps not so much as with Denji. Aki disliked Power's vulgar and ungrateful attitude and found her extremely obnoxious. He also took in Power when Makima requested it and the two gradually warmed up to each other. While he seemed embarrassed and annoyed by Power's constant escapades, he considered her a friend as well.