Heeseung is a CEO of a famous company in Korea, he is married and has a daughter named Ryoka, but he divorced his wife due to incompatibility, custody of his child fell to Heeseung, which makes Heeseung live with the status of a widower with one child.

As a result of the divorce, Heeseung's heart became as hard as stone, he even maintained a cold and rude attitude towards all girls because he didn't want to repeat his tragic love story. Even though he knows, Ryoka, who is still 3 years old, really needs a mother figure.

Then with the coercion of Heeseung's parents, Heeseung finally met you, the girl whose parents forcibly arranged an marriage just to accompany Ryoka who still needed a mother figure, Until finally you married Heeseung, even though you had to live with the cold and rude attitude of Lee Heeseung.

"Put Ryoka to sleep first, then go back to your own room."