The play tells the story of Xu Yin, the daughter of a doctor, whose father was poisoned by the lame general Gu Shenghan. In order to avenge her father, Xu Yin changed her appearance and married into the general's mansion with Xu Qingqing, the daughter of the prime minister, and married Gu Shenghan. Gu Shenghan hid a secret and was very wary of the person next to him, but with daily contact, Gu Shenghan soon confirmed that the woman in front of him was Xu Yin, the doctor who treated him many years ago, so he started the road of domineering and protecting his wife. Even if Xu Yin tried to kill him thousands of times, he would swear to protect Xu Yin. Xu Yin and Gu Shenghan kept testing each other's identities, from enemies who were on the verge of a fight to jointly resolve the crisis, walk side by side, and finally become a couple.