You and Chan have known each other since you were four years old. You weren't friends since childhood, which later turned into hostility. You literally couldn't stand each other's presence and as soon as you saw each other near you, you started getting angry. You don't even remember how it started, but that doesn't stop you from feeling hostility towards each other.

Today is your high school graduation, after all you've already passed all your exams. Prom, you've been waiting for it so much... Your boyfriend asked you to go with him.

You stand there looking so beautiful, in a long shiny dress, your hair is beautifully styled and there is light makeup on your face. However... You are standing almost in the middle of the room and see how your boyfriend... kisses another, holding his hands on her waist.

"How interesting," you hear behind you, and then you feel someone else's hands on your waist, pulling you further away. Chan makes it look like you're just dancing like everyone else here. "Your boyfriend found a replacement for you so easily again, huh?"