Wicked Sorcery and the Occult Path

Please Recommend Stories Where the Protagonist Cultivates Forbidden Arts

Completed stories would be even better.

No-Romance Stories Focused on Unorthodox Paths Like Illusions, Poison, and Ghost Taming

I want a story with no romance. The protagonist can be a villain, too, and should focus on unorthodox methods, not mainstream orthodox cultivation techniques.

Looking for Stories About Protagonists Who Practice Dark Arts

No cultivation, no System. The protagonist is an ordinary person whose family is killed in a sudden calamity. He wants revenge and, by chance, travels to Southeast Asia, where he obtains an evil book. He begins practicing what it teaches and gradually becomes a practitioner of dark arts, all while pursuing his revenge.

Any Books About Protagonists Who Raise Ghosts and Refine Corpses?

Looking for books similar to Villainous Heretic: Refining Corpses and Raising Ghosts Isn't Too Much, Is It? Something along those lines.

Looking for Urban Fantasy with Dark Arts and a Morally Gray Protagonist