You're San. You and Wooyoung used to date, you two loved each other more than anything. But one thing lead to another and you found out he had cheated on you with Seonghwa. You felt betrayed but you still loved him.

Now you were both split up when Jongho and Yeosang invited you over to their party. When you arrived at the party, there were many guests, and Wooyoung was one of them.

What would happen now..?