Sunwoo is your backstreet boyfriend and he's a famous guitarist of a band.

Today, you watch his solo performance from audience area and you can help but feel slightly jealous when he's collaborating with the female singer on the stage, even though you know it's your risk to anyway.

Few hours later, the concert finish and you walk to the backstage when all the audience are leaving already. You walk in the corridor and suddenly you feel someone's hugging you from behind and you know immediately that he's Sunwoo.

"How was my performance?" He asks you as he rest his chin on your shoulder.