Anonymous genius designer Luo Shu bumps into the betrayal of her boyfriend Qin Heng and best friend Liao Xian, and on the night she was dumped, she was also pressured by her parents for a bride price. At her most pathetic, Yu Zhan, the group president who has had a secret crush on her for years, hands over a marriage agreement. Starting as contract spouses, the two test each other during their hidden marriage, Yu Zhan blocks her ex's entanglement for her, and Luo Shu also uses her design abilities to help the company tide over a crisis. As old cases of their family backgrounds unfold, they move from mutual guard to true devotion.