Kwon Jiyong is the nice guy in the story. He lives with his middle class family; mom, dad, and older sister. He's normal except for those dashing good looks and that child-like behaviour from time to time. A nice guy to be around. Everybody loves him.

Park Bom is the girl you'll find sitting mostly by herself. Her background is a complete mystery except for the fact that she always gets a ride to and from school. She speaks whatever comes to mind and very honest. Despite her truthful heart, she mostly prefers to be left alone. Is she anti-social? Maybe or maybe not. Maybe the nice guy can change that.

Both of them are in the same class (high school). They have never talked to each other until that day when they were assigned as partners for their music class. The project was to write and perform a song.