Jiang Li, the successor of a miracle doctor from Huichun Valley, accidentally discovers that she has been locked by a "More Children, More Blessings" system as a substitute tool for the mistress, Liu Ruyan. She plays along, using her blood to transfer the system to a sow in the kitchen named Ahua. From then on, Liu Ruyan gradually turns into a pig: snatching cabbage, rolling in the mud, and making a fool of herself. At the Qiqiao banquet, Liu Ruyan actually gives birth to two piglets in public, becoming a laughingstock. She colludes with the matriarch to frame Jiang Li with a blood test, only to have her conspiracy of fake pregnancy and baby-swapping exposed by Jiang Li, leading to Liu Ruyan's downfall. After her father, the Minister of War, falls from power, she poisons a well and dies by her own hand. Jiang Li discovers that the new concubine is an informant for the Crown Prince, who is the true culprit behind the massacre of Huichun Valley to cover up his secret impotence. While fending off assassinations and winning over the assassin Leng Shuang, she exposes the secrets of the General's mansion and takes control of the overall situation. Facing the Crown Prince's relentless pressure, Jiang Li teams up with the Seventh Prince, who pretends to be blind, to resolve a plague and crush framed charges. Finally, in the Golden Palace, she uses ironclad evidence to force the Crown Prince to take the Emperor hostage, disables his martial arts with silver needles, and assists the Seventh Prince in ascending the throne. With her revenge complete, Jiang Li refuses a royal marriage and reopens the Huichun Clinic in the capital to serve the world.
