When the Ravenclaw Joshua gets transformed into a girl, he gets caught up in some trouble with a Slytherin named Wonwoo.

Momo a rich spoiled daughter that always makes trouble, her dad decided to make her marry a Dr. called yoo jeongyeon.. a humble kind guy. They will get married and she would treat him bad while he will be sweet and caring, One day she discovers a shocking fact about him that will make her stay with him...Eventually she will find herself falling for him... But will she be able to stay with him despite his sad secret?