Mate, I wasn't sure of what to expect from this game, when you first presented it on a certain different site, but you've been open to suggestion and direct to the players which is always good.
The plot is original, very interesting too and the overrall quality is simply fantastic: graphics, models, music choice (I love that accordion tune in the menu), UI, everything shows a great care for details.
I don't mind a story-heavy game (which is a positive thing in the sea of incest games with very poor english that we are swimming in), but I'm also sure that most players will be put off by having too much plot and especially by that very long and dragged MMO segment.
The writing, I believe, is overdone with the amount of names and informations during the MMO part,which is also a huge flaw of the Isekai/MMO genre, that's certainly part of your inspiration and you should definitely lessen the amount of details in that department (maybe redo the intro?).
You should also enable the skipping of content (I used unren, but most people are either new or don't know about that tool)
Still you have shown us to be a capable developer with a great game to be further improved and expanded (and I know that the next update will have plenty of "content" as you promised some time ago in a /weg/ thread).
Cheers