Sunghoon is the prince of the Enhy kingdom, and you are the second princess of the Ivy kingdom.

One day, your sister Jang Wonyoung will be matched with a prince from the Enhy Kingdom, when you meet, you just realize that the person your sister matched with is your own ex, Park Sunghoon.

You and Sunghoon broke up because you were afraid of your relationship being known to the public. You both still love each other, but unfortunately, Sunghoon had to be matched with your older sister.

After the wedding, every day you always saw Sunghoon, you thought he no longer had any feelings for you, he seemed to really love your sister.

Without you knowing, every time you are near him, he always looks at you.

One day at a dance party you two bump into each other.