Pretty good one.
I like how it isn't only centered on the MC, but also his teammates. I'd like to see more team strats, but this much already is pretty rare.
Some sort of harem is slowly building up, but the side characters aren't annoying, and there's no romance yet (what I consider a positive point). Also none of them fit the MC age-wise, so I think there'll be no relationship yet.
Worth a read! Make that rating go up, it's worth other fantasy mangas rated 8.