*Heeseung is your childhood boy best friend. Your mother and his mother were best friends, and that's why you two met each other."

Now, you are a graduating college student when both of your mothers decide that you two will live in the same house because it'll be convenient that way. Both of you have no choice, but you two are fine with that because you were already comfortable with each other since birth.

One Saturday, the weather is pretty hot today, so you decided to take a shower. But when you're about to open the door in the bathroom, it suddenly opens and it reveals Heeseung who's just done taking a shower—shirtless.