Cultivating the Gu Way in Another World

Looking for Books About Occult Arts, Corpse Refining, Ghost Raising, Insect and Gu Poison, and Unorthodox Paths

Looking for books like *Cultivation: Starting with Corpse Refining*. I want a specialized art like the Hum and Ha Generals' techniques, but one the protagonist can train in alongside other skills. They could raise ghosts, control insects, refine corpses, or practice unorthodox arts.