Lee Sun-Kyu(Sunny) is a 15 year old teenager who likes to read Shoujo mangas(manhwa). She wants a boyfriend that'll protect her and be her prince, just like in the mangas. Her childhood friend Jung Jinyoung is just the perfect guy for it. But one day... she gets into a tough situation and she was saved by a handsome boy. In return for saving her, she gets kissed by the boy who she calls the "Bad Prince." Later on, she finds the boy going to the same school as her and he and Jinyoung will develop feelings for her. Stuck in the middle of two handsome prince that fights for her, who do you think will win this battle?