Zheng Mengxi (Han Zhihui), a college dropout who dreams of becoming a jewelry designer, is currently moving towards her dream and setting up a stall on the street to sell small accessories. The days are not salty or bland as she is chased by the urban management. Until one day, Mengxi had a car accident due to an accident. The perpetrator did not look at the damage to the car, but just stared at her. Mengxi just thought that this person was a weirdo. The real identity of the weirdo is Park Hyun-soo (Yeon Jung-hoon), the eldest son of a well-known jewelry company in China. He seems to be a favored child, but he has a lot of depression in his heart. From childhood to adulthood, he has never felt the warmth of the family, and even his marriage problems are strategic marriages in the mall. His nominal wife can't bear it and ran away from home. His whereabouts are unknown. Coincidentally, Mengxi, who looks exactly like his wife but has a completely opposite personality, appeared in front of him. In order to comfort his sick grandmother, Hyun-soo asked Mengxi to play his wife for 2 hours and gave her a huge reward. This unexpected wealth opened a new story and changed the lives of many people...