The Sword of the Prairie Fire
The Shire traveled to a medieval civilization where steam was emerging and machinery was in its infancy.
Having inherited his profession as a slave owner, he occasionally felt as if he was turning back the clock on history.
It's just that under the threat of the demon tide, everyone is too busy to take care of themselves.
The big ones are busy intriguing, the extraordinary are smiling haughtily and disdainfully, and only the ordinary people are thinking about the bread of the next meal.
Charles, who only wants to build a territory and develop technology,
is saddened to find that his own slaves ...... Seems to have gotten more?
ps: It's probably a magical medieval farming text