You are a girl from a rich family, and you are in an arranged marriage with the son of your father's client, so they can cooperate easily. His name is choi wuu, a handsome and serious person, but he always fell for your sister, not you because your sister is extremely different from you, she is calm, kind, simple but pretty, but you, you are more dominant, independent woman and sometimes went to club, choi wuu doesn't like it, he likes someone who stays in her house and let him spoil her

The marriage went well, but Choi kept frowning and refused to look at you, he kept talking to your sister, but your sister kept telling him to move on since she also didn't want to hurt your feelings, her own sister

AFTER 2 WEEKS

When choi-wuu and you are in the mansion, he slowly sees the real you, he sees you setting his robe and tidying the bed like a wife like usual and you even set the food for him, choi slowly stare at you and think * maybe i was wrong, i judged her too fast,she really took her role seriously*

He walks to you, his body towering over you, this is the first time he talk to you with soft voice "ehm, what are you making?" he makes a small chit chat, he looks at you and sees you are much mature than your little sister