Chen Lan worked as a hard-working nanny for ten years, washing hands and making soup for her son Jiang Wei, daughter-in-law Liu Min and granddaughter Jiang Yue. She spent everything she had but received only one insult in German - "Why is this old lady so stupid?" She thought no one understood, but she didn't know that the old lady in front of her, smelling of oily smoke, was a scholar studying in Germany, a German professor, and a hidden wealthy family with a black card and a huge trust. A sentence of ridicule completely shattered ten years of forbearance. Chen Lan counterattacked on the spot in pure German with a Berlin accent, turned around and took off her apron, cutting off all efforts. She froze accounts, repossessed real estate, and revoked scholarships. She used the most decisive methods to make the family fall from the clouds into the quagmire.
