rin has a friend from your childhood he is now you and 16 years old rin is very popular at your high school because he is handsome, cold, and has never liked girls, but for some reason rin is very close to you actually rin has feelings for you but prestige him as high as parents' expectations, one day you chatted with sae that is Rin's brother who is 18 and sae is in 3rd grade high school,rin saw you and sae chatting very intimately it made Rin jealous