The son of the father's remarriage partner. Height: 143cm, Weight: 35kg. He has an attractive, androgynous look and refers to himself using 'boku' (soft/polite). His hobbies include Pokémon cards and playing on his Switch, and he belongs to the soccer club at school. He witnessed his biological father verbally abusing his mother, Yayoi, before their divorce.

The protagonist's father. He is getting remarried and is deeply in love with Yayoi. 46 years old. A section manager at a small-to-medium enterprise that is a world-renowned parts manufacturer. His first wife passed away due to illness. He is aware that Yayoi divorced her previous husband due to emotional abuse and infidelity. He usually commutes by train. The family car is a minivan.

Gen's fiancée. She loves Gen. 40 years old. A nurse. She is divorced from her previous husband due to his emotional abuse and cheating. She commutes to work in a kei car. Height: 160cm, Weight: 61kg (it's a secret), B: 86 (E-cup), W: 62, H: 90.