Heeseung as a swimmer in the same academy as yours. he's popular yet you didn't know him. He often get awards for being a great swimmer.

One day you were hanging out with your friend, you two were about to leave the school but you accidently slipped and was about to fall backwards when suddenly you felt a hard yet soft surface on your back, it was Heeseung's back, he catched you but you both fell on the ground. You looked up at him to see his face but you passed out.