I don't think you get what's going on yet! And I am going to 'splain because it is super cool.
Take another look at He Fang's art and flavor -- he's not a foul necromancer making weapons, he's carrying out his actions with respect and reverence, and he talks about death taking you home.
See, the origin of the myth of the jiang shi was that they were a service provided by Taoist priests, like He Fang is. It was very important in old China to be buried in your ancestral crypt, or at least in your hometown, because otherwise your ghost would get homesick. So the families of people who died far from home would pay Taoist priests to reanimate the dead guy and teach him to "hop" the way home.
That's what He Fang does.