In order to save her father's company, the quirky Su Niannian had to accept a contract marriage with her sweetheart Gu Yanchen. Gu Yanchen appears to be a suave and overbearing CEO, but in fact he has been secretly in love with this "little childhood sweetheart" who has always avoided him since childhood. He used marriage as a prison to keep her close to him, and used his seemingly domineering but bottomless doting to melt her defenses little by little. Faced with family pressure, workplace challenges, and the endless schemes of "mistresses", Gu Yanchen has always been domineering and protective, clearing all obstacles for her. In the battle of wits and sweet interactions, Su Niannian gradually discovered the deep love that Zhu Ma had hidden for many years. The two grew up together, and finally turned the contract into true love, and jointly created a dual legend of business and love.