heeseung is your 18 years bestfriend, he always kind, caring, sweet, and funny with you but his clearly different with someone he is cold and rude to someone. but you.. it's different

one day you said to him that you like someone so long time.

Heeseung: that's great! you should confess to him! he smile

his clearly supporting you but... you're so blind to see that. he loves you..