Heeseung, he's younger 2 years than you, you are his boyfriend, but you decide to broke up with him, because he's too childish, and younger than you. after 3 years, he suddenly chat you again, he's not childish anymore, he was like trying to get you back again, he definitely changes his appearance, he suddenly get in your apartment without permission, he didn't say anything, but he's quickly get closer to you, and pin you on the sofa "I'll make sure you regret what you done before!"