Kim Jiyeon (Stella)   Year 10 Junior New transfer student Bobby & Jinhwan's sister Straight A student Troublemaker Curious Pretty brave Speak without thinking most of the time School model Ambivert Hates crowded places Prefer to be alone most of the time         Kim Hanbin (B.I)   Year 10 Junior Mysterious Rarely smiles Fighter Bruises on his body everyday Hates the crowd Likes to be alone Don't really have friends Nobody knows anything about him The only thing everyone know about him is his name Dangerous         Kim Jiwon (Bobby)   Year 11 Senior Jiyeon's older brother School Jock The popular kids Troublemaker Hate studying Basketball captain School model The guy every girl are swooning over.       Kim Jinhwan   Year 12 Senior Jiyeon's older brother Head of School (school captain) Straight A* student Genius Worrywart Acts like mom sometimes Don't like getting into troubles School model       Koo Junhoe   Year 10 Junior Sarcasm at its best Not into sports Nor studying The school dancer Quite unfriendly Black belt martial art student School model         Kim Donghyuk   Year 10 Junior Good at everything The perfect kid Basketball player Straight A* student The school musician Pianist School Prefect Class Captain School model       Song Yunhyeong   Year 11 Senior School Pref