Yu Wan, who traveled through the book to become a housekeeper, was bound to a system task and assisted the four brothers in overcoming their own shortcomings to pursue love and successfully win a million-dollar bonus. The paranoid Gu Jinyan, the germaphobic Wen Jin, the imperial sister Ji Yueqi, and the sea king Pei Ye are all difficult to deal with and have their own weaknesses. However, because of Yu Wan's appearance, they all realized their own problems, eventually gained love, and made Yu Wan the favorite of the group.
