Ever since a school shooting, Bo-Yun dedicated her life to saving others by becoming a cop, to make sure nothing like that would happen again. Although one day a very suspicous man was tracking her down, He found out about her being hereoric and sneaky during the incident  that occured 10 years ago. He had wanted her to become a spy, and capture the attention of a company owner, who he wants to know the secrets of.

D.O has been accepted into an all boys school called "Sparrowheights High" it seems like a typical boarding school, until  An amulet went missing and it ended up in D.O's bag, can he clear his name? He is doorming with 12 strangest boys at the school, who are hiding a big secret from the rest of the school, and promised to keep it a secret.

A new girl named Hye-rang moves into a large town, and got a job at the local pet shop called "Paws 'n' Claws" , theres not much of school left, when she moved there. Jin Min-Jin { Yongguk } , is a well known " School player" Known for his charming looks, and known for smooth talking almost all the ladies. Except Hye-rang who happens to be a tomboy who hasn't had a single boyfriend, and hasn't thought about having one. He wonders why she doesn't like him unlike the rest. Can he win

What will Odilia Yeun do when she grabs a Korean transfer student and says he's her boyfriend and they are going to Korea in the summer just to proove to a boy and girl that she isn't a damsel in distress, and that she can come back with an amazing talent!~