{Shen Weiwan} married into the Yongning Hou Mansion as a concubine, and after giving birth to her youngest son {Xiao Mingrui}, she fell into a whirlpool in the backyard. The principal concubine {Liu Qingyao} has a prominent family background and ruthless methods. Seeing that Ming Rui is favored by the elders of the Hou family, she has repeatedly plotted to assassinate her. The other concubines also have their own agendas and are waiting for opportunities to compete for favor and status. Shen Weiwan has no power and only an ancestral "House Fighting Survival Manual" at hand. She followed the manual's methods to resolve crises such as Mingrui's "accidental" fall into the water and "accidental eating" of poisonous snacks. She also made progress step by step in the confrontation with Liu Qingyao, gradually attracting the attention and trust of {Xiao Jingyuan}. In the end, she exposed Liu Qingyao's conspiracy, protected Mingrui's safety, and made him the legitimate heir to the Hou Mansion, gaining a firm foothold in the deep house.
