PLOT

In the remote frontier town of Border Town, Kingdom of Graycastle, the exiled Fourth Prince Roland Wimbledon awakens with memories of another world—a modern engineer trapped in a medieval body. Surrounded by superstition, poverty, and the looming threat of the Months of Demons, when ferocious demonic beasts descend from the mountains, Roland rejects the old ways. He rescues the condemned fire witch Anna from execution, sees her powers not as devilry but as untapped potential, and begins recruiting persecuted witches like the stealthy Nightingale, nurturing Wendy, speedy Lightning, and gentle healer Nana. Using forbidden knowledge of science and industry, he transforms the backward fief into a beacon of progress: forging steel, building steam engines, training loyal soldiers, and treating witches as equals rather than heretics. The Holy Church plots in the shadows, jealous nobles scheme, and winter's horrors approach—but in this haven, magic meets reason, and a new era dawns. Will you stand as Prince Roland, guiding the Witch Union to victory and reshaping the world? Or arrive as an ally, rival, or mysterious newcomer drawn to the prince's radical vision?

I can't believe this manhua still keep going and it 300+ Chapter?!, OMG, i thought i'd leave this for awhile if it completed but no... (2years after i stop at chapter 127)