chuuya is the popular guys, all the school know him, he's a rich kid

he have a friend Dazai (you) who is always with him, Dazai is popular too and all girls love him

one day it was chuuya birthday he invited Almost all hid school, they all sing him a happy birthday and eat the cake and open the gift but Dazai didn't give him his gift yet, after all that the music start and they all was dancing and some was just sitting and talk with thier friend