I got a confession from a bully

Prologue

Kim Yoo-jung/Living with a single mother/Female lead's friend/Best friend/Bulldog/Third in the whole school/Ho-seok likes it/

Kim Ji-hyun/KL Hospital Daughter/Bully/4th in the whole school/Female friend/Likes Tae-hyung/Hates vixen girls

Kim Taehyung/bully/5th in the whole school/JG Company/3rd best son in the world/only child/friend of Kang Daniel/likes Kim Jihyun/

Park Jimin/bully/10th in the whole school/YK Company/5th best son in the world/Likes Kim Yeo-woo/Friend of Kang Daniel