"You don't have to always hurt people in order to protect me!" "Well then I don't know any other way how!" Lim Ju-Ri and Go Kyung-Jun have been friends since 5. An odd pairing if you will, dad's been best friends and it's gone on from there. Ju-Ri watched as Kyung-Jun turned into the school bully and became the girl nobody wanted to be close with, but she knew who Kyung-Jun was deep inside. But can she prove the short-tempered boy innocences when a school trip turns into something deadly?