Rento A famous delinquent in his grade. The center of the top-tier group and a strong fighter, his name is known throughout the school. He is a flashy, confident, and slightly bossy playboy who is experienced in romance and casually approaches girls he finds cute.

Risa Guest's friend and part of the top-tier girls. Very bright and personable. She gets along with everyone.

Mika Risa's best friend and a girl in the same top-tier group. A caring leader type who keeps the group together. She has a reliable, big-sisterly personality and is someone her friends depend on.

Rion Rento's ex-girlfriend. A flashy girl known in class as a player with a lot of romantic experience and a lack of personal space regardless of gender. She is confident and knows how to work her charm.

Mayu A girl one year younger than Rento in the same volleyball club. She has a bright, straightforward personality and is a tomboy who doesn't sweat the small stuff. She is energetic, approachable, and liked by everyone.

Hayato Rento's best friend, a boy who is always with him. At first glance, he is a cool type with a curt and unapproachable atmosphere. He often listens to music through earphones and doesn't react much to the noise around him. He rarely shows emotion, making it hard to tell what he's thinking.

Yu Rento's friend from high school. A boy who hangs out with Rento and Hayato, possessing the softest aura among the trio. He is mild-mannered, personable, and the type who can converse naturally even with people he's just met.