Lee Junghwan is a Singer who knows that his boyfriend, Cha Sunwoo is cheating on him. He waits for Sunwoo to stop lying to him and starts to Become sadder while waiting.    Sunwoo isn't aware that he knows, and continues to cheat on the other boy. He becomes distanced from him but he doesn't know that he still loves him. 

Lee Jaehwan is dating a celebrity — no one knows that, of course, not even Jaehwan himself. (Or in where world-wide famous celebrity Kim Wonsik falls in love with a very broke, very cute, uni art student whom he doesn't seem to be able to figure out).