In the misty rain in the south of the Yangtze River, Shen Yitang clutched half a scroll with the word "Shen" engraved on it, and walked from the ruined temple into the royal gate of the Xie Mansion - she came to celebrate the occasion, to support the undercurrent of the house for the mistress of the Xie family who was on the sick bed. She didn't know it at that time, but her anonymity was hiding secrets that could stir up trouble in the court.
The mother-in-law, the Wang family, has never stopped making things difficult for her. It is common for the Xie family to falsify the account books and deduct clothing and materials. The undercurrent of the feud between the princelings and the second prince outside the palace has turned the Xie family into a chessboard. Shen Yitang responded silently, checking accounts under the lamp and planting vegetables in the courtyard. He used his forbearance and wisdom to gain a foothold in the house fight. He also formed a tacit understanding with Xie Liang Yan, who had gone to Beidi as a hostage, that "you guard the country and I guard the home."
The prince extended an olive branch and promised to reverse the case in exchange for her recognizing the engagement; Xie Liangyan sent a message from Beidi to warn the prince of the conspiracy. Shen Yitang is in a desperate situation: if he chooses the prince, he will resolve the family's grievances, but he will suffer the consequences of Xie Liang's banquet; if he chooses the Xie family, the Shen family's injustice will be difficult to resolve and will lead to trouble. But she is no longer a timid woman who just entered the palace. She bluntly stated at the family meeting that "as soon as she enters the Xie family, she will protect the Xie family." She also set up a trap to seize evidence of the princeling's silence and help the Xie family gain a firm foothold.
When Xie Liangyan returned home with evidence of his crime, the Yantie case came to light, the prince's engagement was annulled, and Shen Yitang finally resumed his identity as "Lin". During the simple wedding ceremony under the crabapple tree, she held Xie Liangyan's hand. From an anonymous orphan girl to the mistress of the Xie family who could fight the storm with her husband, Shen Yitang went through not only the confusion of house fighting, but also the growth of a cocoon and a butterfly.