Yu Dundun, an invincible martial arts instructor, transmigrates into the role of the Zhao family's dimwitted daughter-in-law. Because she's fat and foolish, her vicious mother-in-law beats her mercilessly. Her gambling-addict husband racks up debts and is beaten to death. Yu Dundun thinks, so he's dead, big deal. She'll extort some silver and make a life for herself in ancient times. But to her surprise, the gambling addict doesn't die. Instead, someone else takes over his body.
After being reborn, she abandons her former foolish ways, beats up the worst offenders, and tears into the thugs. When she faces her vicious mother-in-law and unruly sister-in-law, her husband comes back to life and stands up for himself. With the family poor, she has to find ways to earn a living. Farming, doing business, opening a restaurant, hunting: there's nothing she can't do. She thinks this is how life will go from now on, but then her husband suddenly turns out to be the idle prince the emperor has longed to find for years.