Seunghyun is a Mama's boy. Truly, madly, deeply a mama's boy who got dolled up every now and then to satisfied his beloved mother's need to show off her son to the rest of the world by casting him to do an ad for her own brand of lip balm. Just a day before the shoot, the makeup artist calls in sick. Now they're desperate for a replacement, then his sister suggests a guy named Jiyong but Seunghyun immediately says no.

Why? Because he's so damn sure it's the same Jiyong from high school who had always tried to get in his pants!!