Its a Yn story but you name is Areumm Seo Aurumm you just moved to seoul with your mom. You're Brother (Changbin) is already there because he is older then you and moved out of house. You (Areumm) and changbin go to the same school there you meet his best mates and 1 of them is weird and handsome at the same time. ♡♡♡ this is a Bangchan fanfic and Changbin is You're Brother.