Cheng Jiming, a technology upstart who has been secretly in love with Xu Lan for nineteen years, finally chased Bai Yueguang as his wife at her wedding to his brother when the groom disappeared. However, after the marriage, he used a set of risky AI trained by himself to judge that she "demanded 30 million yuan and suggested an immediate divorce" and forced her away with his own hands. Three years later, Xu Lan, who had been declared dead, returned holding a two-year-old child. The child called his brother daddy. She looked at Cheng Jiming and asked: "Sir, do we know each other?"