The Village Doctor Son-in-Law

Delivery worker Chen Qiang gets into a car accident, and his soul transmigrates into the body of another Chen Qiang, a live-in son-in-law from the countryside.

A live-in son-in-law has no standing to begin with, and in the countryside he's treated worse than a dog.

But Chen Qiang unexpectedly unlocks the inheritance of his Chen ancestors, and from then on, there's no stopping him. He farms, practices medicine, and occasionally punishes the strong and helps the weak, until he reaches the pinnacle of life!