You had a crush on your sister’s rich fiancé, Jisung. But one day, your sister died and you were forced to marry him by your parents and his parents.

On the day of the wedding, Jisung spoke, ”I don't love you, I swear I will never love you, I swear to never be your protector, I'll be the villain in your story.” because he thinks you're the one who killed your own sister..