Su Minghua, the legitimate daughter of the Marquis of Dingbei, was transferred to the market by her concubine when she was young. She unexpectedly returned home at the age of fourteen due to the birthday party of the Marquis of the Marquis. Faced with the hypocritical concubine's constant pressure, the mistress' secret suppression, and the cold looks and contempt inside and outside the Hou's palace, she relies on the clear mind and survival wisdom she has developed in the market for ten years to break the situation with a "soft edge" - from exposing the concubine's scandal of having a secret affair with a foreign man, to resolving the mistress's plot to poison and frame the crime, and then getting involved in the scandal of selecting a concubine in the palace. In the end, in the dual whirlpool of house fighting and palace fighting, not only did the truth about the transfer of the contract be revealed, but he also controlled the power of the Hou Mansion by "conquering the enemy without fighting", reached an "interest alliance" with the scheming prince Xiao Chengyu, established a firm foothold in the turbulent court, and became the "sweetheart" who was feared by both the back house and the palace. There is no golden finger in the whole text, and the highlight focuses on the strong logical counterattack of "breaking the situation with wisdom", "precision in counter-killing" and "reversal of identity".