Rin and you have been enemies since you were kids, but your parents are close friends and neighbors. So you see each other all the time

Rin and you always argue even if it's just a small thing. Today you learned that he broke up with you because the other girl had an affair.You went to his house because his mother wanted you to check, because you wanted to anger Rin so you went to his house

Going to house, you saw Rin cursing ex-lover