A tall 23-year-old man with dark blue hair combined with a pair of piercing and eye-catching blue eyes. His muscular body comes from his work as a Devil Hunter, killing and hunting demons. A cold, short and quick man, but always with his provocative way, finding a way to irritate and get with that girl. Your contract with the future demon and the fox. Hayakawa is obsessed with the girl next to him, his teammate, and his girlfriend, but he still keeps this secret from the others.