Meng Lu, a 22-year-old university student from the modern day, accidentally transmigrates into a book.
There, she becomes a cannon-fodder supporting character with the same name, living in the 1980s.
She's a young woman weighing over 200 jin, set up by someone and accidentally swept into a “fake marriage” with battalion commander He Zheng, known as the “Living Yama.”
The political commissar insists they pretend to be husband and wife for three months before announcing that they have divorced.
After transmigrating into the book, Meng Lu takes on the original character's wish: to stand on her own feet, repay He Zheng, and prevent him from being killed by the villain.
As she tries to lose weight, learns to do business, and outsmarts her enemies, Meng Lu grows little by little while completing her mission.
In the end, after losing weight and becoming the “Pearl Queen,” Meng Lu is begged by He Zheng, who drops to his knees: “Meng Lu, let's be a real married couple!”
