I'll wait until the next few updates to write a proper review since it's obviously too barebones as of right now to properly critique it. Actually getting around to playing it myself, I'm seeing some good things, such as the inclusion of SFX for sex scenes which were sorely missing for Sana. I do hope that there's going to be better gameplay since they're playing an actual game. Something more than merely pressing Z on objects and turn-based dungeon fights that hold you over in-between story beats, at least.
Although, I'm not a fan of the game within a game concept in the slightest, I'd much prefer if it were an outright fantasy world like with the prior game. It feels more like a gimmick and causes a disconnect in the oomph of the NTR if the majority of scenes are just going to be her in-game avatar having sex. I understand that it's going to be split between the game and IRL, and I saw concept art for a blowjob scene in their apartment, but it's still a bit contrived in my opinion. That being said, there's a ton of potential to be had with this split if done right, and the concept of her hooking up with guys she meets in-game is interesting. I noticed that the story is primed for more emotional NTR than the last game - as in, cheating not only sexually but romantically as well, seeing her fall in love with someone else à la BSS. Speaking of, maybe some NTS could be nice, such as convincing her to whore herself out in-game for items, lol.
Speaking of that, I'm already more invested in Luna and Anon's relationship than I was with Sana's. Anon so far seems like a great friend (Boyfriend?) to Luna and doesn't appear to be a stand-in blank slate pushover like the vast majority of NTR protagonists. I mean, he's interested in her hobbies, cooks for her... he's already doing better than the majority of Tinder dates. Luna herself seems a little bare though, since she's your run-of-the-mill loud tomboy archetype with a hidden soft girly side. Hope she gets some meaningful character development later on. Would also love if there were more routes and meaningful choices than Sana had, with a more set in stone corruption meter being included earlier in development, so we can either get a pure love no-NTR route or a comedically miserable full-on antagonistic cheating for the sake of making Anon depressed route.