I, the Fake Taoist Priest, Take the Lead in Suppressing Demons.

An urban fake Taoist priest who made a living by relying on half-baked knowledge he learned online and his sharp tongue accidentally traveled to a world where ghosts were rampant. With the help of "fake knowledge" and a mysterious system that can transform "fake knowledge" into "true Taoism", he started from a small town's demon history and forced himself to become the true ancestor of the Taoist sect where all laws are unified.