Return ofthe Demonic Instructor

The world is destroyed by a demon invasion and Bigang Sa is forced to serve in the demon army for centuries. After a failed human uprising, Bigang transports himself back into his body, ten years before the arrival of the demons. Can he use his centuries of demon warrior training to create a new class of murim fighters powerful enough to ward off the coming invasion?

Demon Instructor Returns
Demon Instructor’s Return
Ma Giáo Quan Hồi Quy
The Demonic Cult Instructor Returns
帰還した魔教官
魔教官歸來
귀환마교관