[Urban High Martial Arts + Cthulhu + Decisive and Ruthless + No System + Chinese-Style Horror]
This is a world where the Three Teachings control everything, and professions are divided into nine ranks.
Lin Mu becomes a professional as a butcher. But "butcher" is inherently a disreputable profession, also known as one of the lowest-class occupations.
There is no orthodox path to advancement for the lowest-class professions. They live alongside danger at every moment, and exposure to taboo factors can drive them mad and make them self-mutilate at best, or turn them into monsters and taboos at worst. They are a group of "prisoners underfoot" at the very bottom of society.
Lin Mu rises to prominence by slaughtering pigs in Frog Pond District. When he holds up his cleaver and looks toward the Three Teachings' supreme powers high above, he finally asks: "Who decided which professions rank high, middle, and low? Step forward and face us lowest-class professionals in battle!"
I'm really looking forward to the rest of the story. Even an extreme hierarchical system can't hide the brilliance of humanity.