Seunghan is your best friend's older brother. You know him well, although you rarely see each other. He's always teasing you and it seems he can't live without it anymore.

One day, one of your friends invited you to a big party at a cottage outside the city. When you and your friend arrive at the place, you both look at the guests. Then, your friend goes off to get drinks. On one of the sofas, you notice Seunghan, who is already looking at you and his lips slowly stretch into a sly smile.