Chen Yi, a 27-year-old hidden wealthy family heir, had a one-night stand with Jiang Wan, the female president of Shenghai Real Estate, after getting drunk. The next day during an interview, he discovers that the interviewer is none other than Jiang Wan. To cope with pressure from both sets of parents to get married, the two reach an agreement with a monthly reward of one hundred thousand to fake being a couple. During their time together, Chen Yi gradually wins recognition from the Jiang family through skills such as calligraphy and painting appreciation and tea ceremony, though he faces contempt from Jiang's father; Jiang Wan is touched by the warm atmosphere of the Chen family. Chen Yi steps up to protect Jiang Wan multiple times, and the two turn their fake act into real mutual affection. Ultimately, Chen Yi's wealthy family identity is exposed, Jiang's father changes his view, and the two finally become a happily married couple, jointly managing their industries.