The former top talent of a martial arts family, due to the family ban, sealed his cultivation, moved into the city, and became a good-for-nothing son-in-law who can be bullied by everyone. For three years, he silently endured all the ridicule, just to protect his wife and three-year-old daughter. On the expiration of the term, the ban was lifted. Faced with the evil young man who humiliated his wife and daughter and mocked his relatives, he no longer tolerated it. A pair of iron fists can not only hold up the sky for his wife and daughter, but also trample all enemies under his feet. When the city's rich and powerful are still complacent about their money and status, they don't know that they are dealing with a martial arts madman who can destroy the sect, and a nanny who cannot touch the reverse scale.