Xia Xi, an unmarried woman who gave birth to adorable twins, takes a job as a live-in cook and housekeeper at the home of the president of Chu Group to earn money for her babies' formula. As fate would have it, Chu Song is being relentlessly pressured by his family to get married. When he discovers that his new housekeeper is already married and has children, he realizes she is the perfect shield against his family's matchmaking demands. He immediately offers her a generous salary to pretend to be his girlfriend! They hit it off and embark on a chaotic life as a contractual couple. However, Chu Song soon realizes that he has gotten himself into trouble. Every time he wakes from a midnight dream, he has to sit up and slap himself in the face. Just when he finally decides to steal her away from her supposed husband, he suddenly discovers that his little housekeeper is actually unmarried! Chu Song immediately offers up everything he owns to win her heart. How about turning their fake romance into the real thing?