Introduction and Characters

This is a story about a girl named Im Gayoon . She grew up with a guy named Lee Ildong , she was thought not everyone is easy to trust . She is heartless and has no parents they died when she was six then Lee Ildong found her and trained her . He was the most feared spy but now he is the boss . What happens when one day Gayoon was ordered to transfer to another school where she has to keep an eye on these seven boys who call themselves bts . She had to find out more about them .