so I went and started reading the LN translations, and while I still get annoyed by the japanese way of writing (almost all talk, minimal to no actual description of the world/setting outside the mc's surface thoughts), the story itself seems pretty good. Can't really treat it as isekai, because the reincarnation stuff is barely mentioned and the mc starts out having already grown up in the new world when the story starts. Nineteen chapters in (not much farther along than the manga on here), it doesn't seem like having an OP mc is going to be a problem; it's pretty clear his power is from inherited magic artifacts and actual training, which is a huge plus compared to the generic way isekais go.