What's the name of the pig killer's novel called Su Musheng?

The title of the novel is that my grandfather is a pig killer, and killing pigs is a dirty job.

This is a mystery novel created by Su Wan. Suning, the protagonist of this novel, has a fascinating plot and is highly recommended. The point is: those who kill pigs don't kill five-fingered pigs. People who guard villages don't guard villages with temples. Feng shui masters don't order dragons. Midwives' hands must be washed with rooster blood. There are 360 lines in the world and there are rules.

This novel is very interesting. You can read it.