Kim Hae Yun is a fifteen year old teenager currently attending an "all girls" middle school. She absolutely loves reading manhwas and wants a boyfriend, her prince, to always protect her. One day she gets involved in a tough situation when she gets saved by a handsome boy. As a token of gratitude he kisses her and later is known as "erted Prince". Later on she meets a guy that looks exactly like him but with the different personality and eye color, she can't help but wonder what is going on.