Shen Yuejian was trained by her aunt to be a top master in fighting for favors. She originally wanted to marry into the Pei family as a concubine, but unexpectedly became the official wife of Pei Yan, the cold-faced waiter. She had nowhere to use her house-fighting skills. After newlywed Pei Yan was humiliated by the prince, he asked Shen Yuejian to teach him the tricks of the back house and use them in the court. Shen Yue saw his generals and taught him skills such as showing weakness and making slanderous remarks. Pei Yan was extremely talented and quickly transformed into the court's "tea master", repeatedly resolving crises and overthrowing political opponents. The two gradually develop feelings for each other while teaching, and work together to face the difficulties of the Queen and the Wang family. Pei Yan rises step by step, and Shen Yuejian finally understands that what the back house and the court are competing for are the hearts of the people, and her skills are finally put to full use.