Song Wantang, the concubine of the Marquis House in the capital of the Ning Dynasty, was regarded as a "disaster" by her aunt Wang, because her mother was from Jiaofangsi and had "killed three betrothal partners" (actually a coincidence), and she lived a life of harsh treatment since she was a child. In order to protect herself and her mother, she used pranks to fight back: using loopholes in the account book to trick the money-grubbing housekeeper into losing all his family property, using osmanthus tea mixed with laxatives to make the Wang family afraid to go out for three days, and using fake pregnancy to scare off the sick man who wanted to marry her... As the "troublemaking" escalated, the hidden problems of the Hou Mansion (corruption of the housekeeper, embezzlement by the Wang family, and the struggle for power by the legitimate son) were exposed one by one. Gu Zhaozhi, the eldest son of the Gu family next door, discovered that this "Concubine's concubine" was actually smart and clever, but she just used pranks to cover up her vulnerability. The two went from "undermining each other" to "fighting side by side." Song Wantang finally counterattacked and became the mistress of the Hou family, turning the Hou family on the verge of bankruptcy into "the richest man in the capital", and gained sweet love with Gu Zhaozhi. (Highlights: Use a spoof method to solve conflicts in house fights, which is intensive and funny, breaking the "bitter feelings" routine of traditional house fights)
