Shen Wantang, an orphan from a reclusive medical and military family, mistakenly recognized the bandit-suppressing general Pei Ji as his childhood savior. Pei Ji forcibly married her as his substitute wife because she looked like the "enemy's daughter" that he could never find. In the misunderstanding and torture between the two, one desperately gives love (Love Brain), and the other excites hatred to the extreme (Crazy Batch). The truth about the murder of the Shen family, Pei Ji's hatred for the country's subjugation, and the shocking mystery between the "substitute" and the "rightful owner" are revealed layer by layer. In the end, when Shen Wantang "died", Pei Ji found out that the wife he had tortured so much was Bai Yueguang, whom he had glimpsed in childhood and had been pursuing for many years but hated to the bone due to misplaced information. The crematorium for chasing his wife was set ablaze, but Shen Wantang had already lived out his life on the road to farming, practicing medicine, and rebuilding his family business.
