In the 1970s, Yang Lanying, who had suffered all her life, was reborn. In her past life, she served as an unpaid nanny for her runaway daughter, her lazy daughter-in-law, her husband harboring a first love, and a whole family of relatives, working herself to death without anyone appreciating it. In this life, she completely turned the tables, slapping away the daughter wanting to go to the countryside with her partner and reselling her job in return; rebuffing her lazy eldest daughter-in-law and letting her run back to her maiden home; changing the door locks, picking up a kitchen knife, and fiercely standing up to her husband Chen Youguo; setting rules and collecting meal money, beating the group of parasitic sons and daughters-in-law until they lost their temper. The crazy old lady Yang Lanying lives only for herself in this life, and no one will ever think of taking advantage of her by even a fraction again.