On the wedding day of Bu Jiu Sheng, the legitimate daughter of the General's Mansion, her fiancé Qi Junmu and her confidante Lin Zhaorui blocked her sedan chair and forced her into the palace, demanding that his wives and concubines marry him. Bu Jiusheng angrily flipped off the sedan chair, turned around and remarried Qi Su, the eldest son of a concubine who was despised by the prince's family and was poisoned by a strange poison. They joined hands to break the situation with the promise of common revenge. She disrupted the Marquis's residence by means of the back house, causing the mother and son to turn against each other and the husband and wife to separate; he used his military exploits to secretly set up a chess game to protect her father and brother. The two gradually fell in love step by step, and changed from a contracted couple to a sincere couple. They finally made their enemies reap the consequences and ushered in a happy life walking side by side.