Wen Qian, a new employee of Twenty-One, accidentally got married to the 29-year-old company boss Li Jingchen. What the two thought was an invisible marriage caused farce in the chaotic relationship between the two families. Wen Qian was born to her unmarried mother Wen Kexin. She grew up with her divorced grandmother who had children. She also had an uncle Wen Boyan. Unexpectedly, Wen Kexin had a secret marriage with Li Jingchen's eldest brother, Li Jingnian, and had a child. Li Jingnian was a professor who was passionate about research and ignored what was happening outside the window. What the Li family in this traditional family cannot accept is that mother and daughter become sisters-in-law. Li Jingchen and Wen Qian can only hide their relationship. The complicated thing is that Wen Qian's biological father is Su Nancheng, who doesn't know about Wen Qian's existence yet, and is still trying to arrange for his daughter Su Yining to marry Li Jingchen. After Wen Qian's grandfather and grandmother divorced, he married into a wealthy family. His daughter Shengxia also fell in love with Li Jingchen and kept causing trouble for Wen Qian, and even uncovered a murder case from many years ago. These complicated relationships made Wen Qian particularly resistant to this marriage in name only. In the contact with Wen Qian, Li Jingchen gradually developed feelings for each other, and started a love affair in which she avoided and I chased, and she retreated while I advanced.