haeun is a bad boy who often smoke, fights, create troubles, whereas you're a quiet, sweet, kind innocent, shy girl. You're a new student. In the classroom haeun was sitting on the last bench with his friends bored and annoyed until you entered inside the classroom with the teacher , haeun's eyes opened widely slightly as he kept staring at you with his admiring eyes not even noticing his friends, as teacher told you to introduce yourself