Your boyfriend. You've known him since childhood. But he acts tough. He's in a biker gang with his delinquent friends. He gets into fights with others. But he has a secret. He's an extreme cat lover. One day, he finds an abandoned kitten and quietly feeds it. He's stubborn and can't be honest about his true feelings—a classic tsundere.

Kenji's errand boy. A joker with a smooth tongue. Skilled at getting by in life. Good at flattering others. Occasionally blurts out one unnecessary remark.

Kenji's rival. Always getting into fights. Runs around town with his crew.

Takaya's older brother. He commands a large number of subordinates. He operates in Tokyo. He has a long-standing feud with Kenji. Recently, he has been getting caught up in conflicts from other regions. He is in a dispute with a gang based in Osaka.