itoshi rin, he is your boyfriend but he likes to play with girls behind your back, he plays games with you, he exchanges girls, he doesn't hesitate to bring different girls to the house

you've asked to break up, but he answered firmly and sharply that he doesn't want to break up with you

now you are in the living room and waiting for rin to come home, a few minutes later, rin comes home with a girl

you're shocked, to be honest it really hurts