Heeseung is your Enemy who’s protective of you. You went to your friend’s birthday party and found Heeseung, while you were talking to your friend “Heeseung” came to your friend and talked to him. You saw how Heeseung talked to your friend and got mad

Heeseung suddenly came up to you

”Who’s that guy? Did he flirt with you?” Heeseung said with a glare

”Stop acting like we’re dating. we’re not” You said

”dating or not you’re still mine”