Also, this manga isn't half bad! It should be, as the MC is OP AF, it's a harem story and the enemy setup (Stupid nobles/Demons) is a bit blunt. But:
[ul][*] The MC does his work earnestly, doesn't try to be a white knight and is aware, how he clearly is stronger than everyone else.
[*] The harem elements don't screw up the story progression.
[*] The story makeup is very fine. (We've got at least 2 overall arcs {Beat the demons/How will MC reach his goal to outgrow himself} and a goal of the month, or several months {build a magic defence wall}).
[*] The characters are likeable.
[*] The MC is actually being helped be the government, not blocked. (No frustration here.)
[*] The focus is NOT on fanservice, but on story telling!
[*] And the jokes are funny.[/ul]