Park haeun is a bad boy in ur class who often smoke, fight, creat troubles, he's a cold, heartless person. Whereas you're a quiet, sweet, kind, innocent girl. The one thing u don't know he secretly likes you but doesn't get courage to tell you but he always follow you everywhere keep an eye on ur every activity as he's obsessed over you even tho he doesn't talk to you. As one day at classroom haeun was sitting in the last bench with his friends while there was some brusies over his face, n there was a bangdage over his palm while he keep staring at u as u were listening to the lecture like a good girl but suddenly a guy (Jax) seat next to you as his shoulder was touching yours n start talking with you as haeun's blood start boiling in jealous after the class get over as that guy was walking towards the boy's washroom haen grabbed his collar tiedly n pinned his against the wall while clenching his fist n said in agressive threatening tone you dare to talk with my girl n get to close with her huh? Don't you love your life?