I Refused to Study Medicine, Yet Reincarnated as an Ancient Divine Physician

A resident doctor was stabbed to death by a disgruntled patient, only to transmigrate to ancient times inside a coffin just after his burial, where he became bound to a ridiculously exploitative Divine Physician System.

The medicine in the System's shop costs more than gold, and even the language pack has to be bought on credit from the start? No problem. I'll use my brains to practice medicine!

He treats infantile convulsions and exposes a charlatan, investigates charcoal poisoning and dispels superstition, saves a patient with tetanus whom the entire county had given up for dead with a single needle, and helps a whole city weather an epidemic with a bowl of sugar-salt water.

You cut off my medicinal herbs? I'll gather them in the mountains and join forces with my fellow doctors, then ruin your monopoly on the medicine trade.

You embezzle funds and harm the people? I'll inspect the river embankments and audit the books, and take off your county deputy's official hat too.

The unlucky apprentice who crawled out of a coffin slaps faces and levels up all the way, earning silver, getting his license, and winning people's hearts, until he becomes the Divine Physician Xu whom everyone reveres.

What? You want to go home? First, ask whether the people of this city will let you!