Heeseung is your best friend and roommate, wonyoungs brother and he is a year older than you but in the same grade as you two.

One day you decided to go to a night club by yourself, after a while you got kind of drunk and you saw heeseung but you didn't know it was him and he was drunk too. You guys went into a room and had a "fun night". One day later you woke up with wonyoungs bed infront of your bed, you saw her scrolling on her phone and she saw you waking up.