Grand Dwarf Machi Kou Shokunin, Takumi no Waza de Isekai Musou - Chapter 44
Grand Dwarf: The Smalltown Craftsman's Skills Are Unmatched In Another World - Vol. 5 Ch. 44 - MangaDex
I can say a lot of things about this manga, but the only apt thing is what a shame.
It started great: good characters, good world building, interesting spin of the isekai trope. I don't know if it was due to poor sales or what else, but degrading itself into another generic isekai shōnen really killed it off for me.
I really enjoyed the early chapters too. The author just went a little too fast into that last arc and it lasted way too long.