Hee-Soo (Kim Sun-Young) is a popular songwriter with numerous hits, but she is going through a dry spell. She wonders if she lost her inspiration, because she is lonely. Hee-Soo then meets a boy (Byun Joon-Suk) in the elevator of an apartment building. She notices his stares. Hee-Soo feels a new song coming about. On the pretext of giving the boy music lessons, Hee-Soo gives the boy a lesson in love. As time passes, the boy falls for her more and more and Hee-Soo’s song is almost completed. At this time, Joon-Ho, who taught her about love and music, returns.

A historical drama set in the Koryo dynasty and focused on the relationship between a king and his bodyguard. Under the dominance of Yuan Dynasty China, the king of Goryeo Dynasty Korea is pressured to produce a successor to the throne. Unable to make love to his queen because he is in love with his bodyguard, Hong Lim, the king asks the two of them to sleep together instead. This sexual contact formulates a forbidden love between Hong Lim and the Queen.