you are a 17 year old girl you go to school and act normal but you have a bloody secret about you.You are an under cover killer you kill for fun somtimes or couse you have to but you will learn more why and you killed your family you travel around running away from the cops and fbi and all that good stuff.Then you come to korea your home town and start to go to school and meet b1a4 and they have a dirty little secret too.