· Imaginary background: In the Liang Dynasty, the emperor was ignorant, nine sons were competing for the throne, there was a strong enemy in the north, and the court was like a chess game.
· Male protagonist: Xiao Heng. The King of Zhenbei has great military exploits, is cold and decisive, and hates weak and useless people the most. When I was offered the marriage, I thought I would be a burden, but later I discovered that she was my "brain".
· Heroine: Shen Heng (héng). The eldest granddaughter of the Grand Tutor has suffered from heart disease and weak lungs since she was a child. She has been taking decoctions all year round. She gets out of breath after walking a few steps and can hardly get out of bed in winter. Her mother died young, and her stepmother only begged her not to die at home. She lives in solitary confinement, and everyone thinks she is a medicine pot who will not live long. But she has a photographic memory and is proficient in medical science, formations, and deductions from people's hearts. A prescription can kill people, and a word can overthrow a country.
· Beginning: In order to contain Xiao Heng, the emperor gave him the marriage to the "most useless" Shen Heng - she would not live long anyway, so it would not be a pity to die. Shen Heng smiled slightly: She could finally leave the Shen mansion that suffocated her. Xiao Heng was furious: Give me a sick man? On the wedding night, he slammed the door and left.
