Oh look, another "Rich money hoarding noble bad" in the beginning of the story. How many times will mangas use this tired and stretched trope? You could literally use a nigh infinite amount of other ways to make a noble bad, make them supporting the enemy kingdom, make them run a slave work factory, make them actively seditious, make them commit fraud or a ton of other things. But no, poor commoner good, rich noble hoard money bad.
It takes a real special author to make me drop a manga in the first few panels, but ya did it. Congratulations.
Lemme guess the future of this story.
Mc kun will teach the meaning of Japanese enlightenment thinking to these barbarians who even though they have a working civilization need to understand that they are dumber than mc kun. Also, there will be either a racist, classist or sexist noble/nobles that mc kun will defeat and show his virtue by extolling modern Japanese morals to. "All hail modern Japanese enlightenment thinking. These barbarians are so uncouth" the mc extolls from his hill of bodies and long list of crimes that he will never be punished for.