The Beginning of the Urban Witcher: Slapping the Old Lady

(Not cool writing, no system, no cheats, pure Taoism) My name is Wu Ming, I am a demon hunter. I was just an ordinary demon hunter at first, but unexpectedly I got involved in a competition between multiple forces. The old lady raising humans and animals in the mountains, the possessed beauty in the arcade, the cultists who have been lurking for many years, the mysterious corpse-raising incident in the underbelly of the river, the underground experiments of monsters, the mysterious disappearance of the law enforcement chief, everything started to revolve around me. The huge pressure made me breathless. What kind of calculation was behind all of this?