It's an isekai, but it starts out like a wilderness survival manga. This manga takes its time to examine the world and build it up more than almost all other isekai. Grimgar is the only one that's done it better. There's nothing that makes it special, it's just well done. It lets the world breath and you get to enjoy the, so far, casual adventure in a fantasy world. If I had to say one bad thing about it, it's that despite the manga taking a somewhat more realistic approach, the MC is still a little OP. That's pretty standard for isekai, though, and it's stillat a reasonable level.