The heroine Shen Jinghong was originally a military doctor in the last days. She traveled through the turbulent times of the late Ming Dynasty and early Qing Dynasty and became the much-disliked "silly girl" of the Shen family. The family favored sons over daughters, so in order to pave the way for her good-for-nothing brother, she was treated as an abandoned child and married to Xie Linyuan, the prince's adopted son who was rumored to be a murderer and whose identity was embarrassing.
In order to protect himself, Shen Jinghong pretended to be crazy and stupid in front of others, but used his superb medical and poisonous skills behind others to survive step by step in this troubled world. Not only did she cure Xie Linyuan's old illness, but she also used her female body to turn the tide amidst the court strife and the war of resistance against the Qing Dynasty in the Southern Ming Dynasty. Whether she is faced with the blood-sucking of her best family members or the frame-up of the palace concubines, she always uses "madness" as a cover to fight back forcefully (which is cool). In the end, she unveiled the mask of fool and fought side by side with Xie Linyuan, proving that women can also bring peace to the world.
