In overlord, mc doesn't reincarnate into a game world, he reincarnated as a game character with all his belongings/guild stuff and it all works in THE FANTASY WORLD that he is brought to. This story is similar but it's a strategy game not an mmo for the mc.
OK so after you get past all of your presumptions about this piece because of the sort of realistic art style and the thought that the mangaka might just be writing what happened to himself, it sounds kind of depressing and thinking to yourself because of how oddly realistic it seems that...
I'm on chapter 8 as of this comment and... woooooo this has been a strange ride! From the start until it got to the point where it abruptly seemed to get really... sexual/echhi (but with massive censor blocks for no reason that were drawn back in thankfully) the overall tone seemed different...
Manga authors are a different breed. It's like they play spin the bottle for the most retarded sounding thing they can think of then try to make it good. This is reprehensible, just because something can be done doesn't mean that it should. smdh.