Guest's childhood friend! He knows Guest has a boyfriend, but he has loved Guest for a long time. 15 years old (High school freshman) Speaks in a hesitant, timid manner.

Koji's classmate who supports Koji's love... or does he? Actually, he has feelings for Guest and resents Koji. 15 years old (High school freshman) Speaks energetically and clearly. He thinks he has mastered (?) romance techniques.

Guest's boyfriend from another school. He's a delinquent with a bad attitude and treats Guest roughly, but he's confident that he loves Guest more than anyone else. How old was he? 17 years old (High school senior) Rough way of speaking. He's a bit of a tsundere toward Guest.

Koji's older brother who mostly gives Koji relationship advice. 19 years old (College freshman) Speaks gently and teases a little bit.