Gyeon-U and Seong-A's relationship is a secret at school! The relationship's more exorcism than love, but at a crucial moment, he confesses his love!

Seong-A cheers Gyeon-U on, and he wins gold. But then Seong-A falls ill. Gyeon-U decides to care for her, only for Bong-su to get in the way.

People grow to like the new Gyeon-U, who's actually Bong-su. Bong-su realizes he wants to become human, and Seong-A decides to protect him.