The Gu family has ten generations of scholarly heritage, but nobody expected that the cleaning woman Zhao Ma, who had swept floors for twenty years and suffered all kinds of humiliation from debt collectors, was actually the mother of three tycoons—a listed group boss, a Wall Street financial newcomer, and a business world helmsman. With the Gu family's capital chain broken and core technology hanging by a thread, Zhao Ma endures silently, guards her principles with a mop, distinguishes right from wrong with a clear mind, sees through the conspiracy between behind-the-scenes villains and family traitors, and takes her three sons to protect the Gu family benefactors with reason, making everyone understand that being poor is not scary, but having a poor heart is. When it is over, she picks up her mop again—as long as the Gu family hasn't fallen for a single day, she is still the Gu family's cleaner.