Taemin has run away from home. One night, he happens to come upon a small village of one house...Key, an angel banished from heaven for trying to bring his mother back to life lives in that house. The night Key opens his door to one lost teenager is the night both their lives change.

Chaemin lives in a family with a history of doctors and she is expected to follow the same path. In actuality, she dreams to become a world class pianist. Taemin is an average schoolboy. He's always been quiet and off the radar but behind the scenes he aspires to become a professional dancer. For now, he sings background in his friend's band. Chaemin meets Taemin by chance and their relationship grows when they discover something about their childhoods and as they help eac