The Choi family, which runs the Sun Group, has a wealth that everyone envies. Choi Jiangzhou (played by Lee Hongki), the eldest son of the Choi family who returned from studying abroad, has become a diamond bachelor that women who only recognize money want to cling to. Choi plans to marry his girlfriend Zhang Yijing (played by Yang Zhencheng), but Yijing is unwilling to achieve this profit wedding according to her mother's intention. She chooses to escape on the eve of the wedding. By mistake, Luo Doulin (played by Yang Zhencheng), a poor girl who looks exactly like Yijing, stole the dragon and became Choi's fiancee. Mistakes are inevitable in hasty preparations and training, but Doulin is getting closer and closer to Jiangzhou. His naughty and witty personality brings a lot of happiness to Jiangzhou, who is used to seeing false smiles. However, the star-point happiness is shrouded in a terrifying atmosphere. There is a long-standing legend in the Choi family that the first bride of the eldest son in the family will be cursed and die. Around this legend, the fate of Jiangzhou, Doulin and the Zhang brothers and sisters are all twisted together...