Protagonist who enrolls in the marine academy city ship Little Garden to become a Slayer. He is challenged to a duel by the school's top Slayer, Claire Harvey, and feels a strange familiarity with his roommate, Emile.
Their connection is presented as a central mystery surrounding Hayato's identity and past.
Hayato feels that Emile is strangely familiar despite their meeting at the academy.
Sakura develops romantic feelings for Hayato, while the provided events do not establish a mutual relationship.
Sakura falls in love with Hayato after meeting him during the bodyguard assignment.
Their shared missions require mutual trust and coordinated action against Savages and hostile Hunters.
Hayato and Claire conduct Savage-clearing operations together, including a night patrol near a lake.
Explore the full interactive character relationship map of Hundred