"You're cold-hearted". You, a regular student at Woolim High School. You're a junior and you're a nerd but no one really cares. Everyone at school except the queenka, Woori. You never really noticed that gangs at school (Infinite) until L starts noticing you.          

You, Lee ______, is Lee ByungHyun or also known as L.Joe's younger sister. L.Joe is the rebel/badass hottie in your school and is part of a gang called Teen Top. You are also in a gang called 21 (later in the story) and you are equally badass as your brother. But, what if L.Joe is hiding a secret from you that no one really knows, something he's been hiding from his childhood? When Infinite comes along, will everything be revealed? How far will this love show go? L.Joe, Lee ByungHy