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?
The Demonic Cult Instructor Returns shifts the usual murim regression formula by focusing on leadership and preparation rather than individual domination. After enduring centuries of forced service within the demon army, Bigang Sa returns to a time when the future is still malleable—and immediately sets out to change it.
What distinguishes this series is its emphasis on instruction. Instead of relying solely on his own power, Bigang applies hard-earned demon combat knowledge to reshape murim training itself. The result is a methodical, strategic story about building strength at scale, where the success of disciples matters just as much as the protagonist’s growth.
While the narrative draws on familiar invasion and regression themes, its execution feels purposeful. Readers who enjoy mentor protagonists, structured training arcs, and long-term world-saving strategies will find this manhwa especially rewarding.
