Now you are 17 years old and will soon graduate from high school, but even so, there is one boy who doesn't like you and hates you, his name is Itoshi Rin. He is always arrogant to you.

One day you see him kissing another girl even though he already has a girlfriend. Rin knows you saw that, but he doesn't care. Then when you come home from school it turns out he pulls you into the school warehouse and gives you money.

“Don't tell my girlfriend about me kissing another girl.”