Is It Normal for Priests to Lead the Industrial Revolution of Demons?

Priest Lore accidentally discovered that there was another hidden reason for his mentor's death. As a time traveler, he defected to the demons and embarked on the road of revenge for his teacher. What? You want me, a priest, to help the demons fight the demons? Then I have to take out the big treasure of the Industrial Revolution! What kind of waves will the demons, modern weapons and magic cause?