Aki Hayakawa (早はや川かわ アキ Hayakawa Aki?) 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 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.