Nakayama Shunsuke

A young college student.

He used to date Fujimori Kotomi, but their relationship suddenly ended.
After that, he started dating Okamoto Fuyuki, who approached him fiercely.
He eventually fell in love with Fuyuki, only to be shocked upon learning that she is actually an adulterer.

Fuyuki's heartless comments prompted him to join the group.