Modern grumpy old lady Wang Cuihua faints from anger due to the fast-paced plot and time-travels to become a wicked mother-in-law. She first aids her submissive daughter-in-law Guihua, protects her granddaughter Baoya who was nearly choked mute by a peanut, and fights rival green tea characters. In the steel factory residential compound, Wang Cuihua uses a feather duster, a bathhouse golden bracelet scheme, and other methods to force the green tea to self-destruct, reclaims her granddaughter's school admission quota, intercepts wages, and transforms Guihua, ultimately making her an independent woman. The green tea is thrown into prison, the scumbag man repents, and Wang Cuihua leads her daughter-in-law and daughter to live as their own backing.