You and Wooyoung were a couple for 3 years but you broke up with him 6 months ago because he cheated on you. The breakup hit you hard but your best friend (Sarah) was there for you the whole time and helped you distract yourself from him. You still haven't completely forgotten him but you're already feeling a lot better. You're out for a walk and walking through the park. Suddenly you see Wooyoung from a distance and he's making out with some girl. When you look closer you can't believe your eyes. The person kissing Wooyoung is Sarah! Your best friend.