Qiuju, the lady in charge of the ancient Duke's Mansion, was about to gain a foothold while assisting her master, but she died unexpectedly and traveled to a modern family to become a trainee nanny. The original owner was instigated and almost got into big trouble, and he was still burdened with debts. Qiu Kuan, who is well versed in the ways of the world, avoids traps, resolves difficulties caused by her boss and plots by others, and gains the trust of Jiang Chuling, the sixth daughter of the family. She handles all kinds of family affairs and exposes various conspiracies, which also attracts the attention of Pei Cizhou, the paranoid young master of the Pei family. Qiuju just wants to be a subordinate with real power, and she has to deal with endless contradictions in the collision of ancient and modern ways of doing things.