Introduction:

Lin Chenfeng, a miracle doctor who came to the big city from a poor ravine, originally wanted to become a doctor with his outstanding medical skills, but he was eliminated because he had no diploma, no license, no relationship, and no medical "morality" and became a "four-no" person.

By chance, Lin Chenfeng saved an old man and was arranged to become a pharmaceutical salesman; Since then, a ninth-rate salesman who does not understand the rules of the industry and takes bricks everywhere was born.

First-class medical skills, ninth-rate business! (To be continued......)