Zhou Wanyue, the eldest daughter of the Zhou family, had her engagement broken off, and her reputation was ruined. At the age of twenty, her father tied her up and sent her to the external residence of a 57-year-old grand eunuch. When the planks were about to beat her to death, Zhang Xiao'an knelt down and carried her from the execution bench back to his own leaking hut. Everyone said that putting such two people together was a mismatch. But in that hut, he handed over all his monthly salary to her, and she taught him to write his first name; he risked his life to report a treacherous official for her, and she carried him home from the mass grave. This mismatch despised by everyone turned out to be a lifetime of deep love.