Well, if I have to be blunt (with all due respect of the translator) : It needs a little love of an editor.

The grammar, and all that stuff of the (complex?) english language is a only a bit messy (though, if you have already read other mtl you are surely experienced this).

But, when you talk about the story, it is fairly good and interesting. The MC is not and OP one or a Soft, he is just a very realistic one with a good amount of Alpha in him (if you know what I'm talking about).

Spoiler

Like he isn't a really virgin one (in fact he loses it in the really early chapter of the novel) and he accept and aproach the heroines with an adult mentality that is likely rarely to see.

The heroines may be a little annoying for some people (again, only for some people)

important point: you have to accept in the get-go that there is a dark past on some of them (a reaaally dark past)

Spoiler

r*pe and stuff, all in the past, like I said (so no NTR) but still...

and last: until this point the story is enterely in the management of the territory.

Having said all of that, I recommend it at least to read the first chapters and see if you like it. Pd: it has some illustrations.

After a long time I finally found this novel name.

I've read it long long time ago in my language. This novel is good and quite unique (well... at least 3-4years ago) the MC is smart harem member has a good character devolopment and not useless. A shame tho the translation here is seems very slow. Each volume is quite long as well the translation in my language is already at vol.5 and it take so much time to catch up.

It's rare that I read something and know right from the first sentence and know that I won't enjoy the experience. The translation is somehow a bit worse than machine translation, just a tiny bit worse (honestly lurked for the raws and machine translated thanks to Google-sensei and it was definitely more legible). The story itself is pretty bog-standard, no real personal twist to the who modern-knowledge isekai troupe. An overall "Meh" experience that was made worse by translation. A work of art unto itself, somehow ending up worse than machine translated... or maybe Google-sensei is just getting better at this?