OK I guess as a seasoned H game otaku I will write up more than I ever have on any other game on this in defense of the developer.
Basically, this is game is wholesome NTR, and like i said previously, cute corruption. Everyone involved consents to a point, and it seems the world it takes place in has different moralities. The whole "NTR jealousy ahhhhh oh no" thing doesn't seem to be the attitude, and it very much seems to be more in line with like, old school swingers lol. That's fine, and the story is written in a way that everyone seems to be happy and having fun.
This probably puts the game in some weird spot where anti NTRs are still against it and the people who love NTR don't get their full kicks from it, but as someone who just likes good things no matter how they are presented, this game is really cute lol.
They love each other, there is some corruption, they begin to get a big more spicy, but everyone seems like they don't want to hurt anyone. Very good stuff.
IDK what to call this genre so I'll just call it cute corruption, Corrupted Kingdoms is a little like this, but IMO this game is really well written and well made and you can tell the author is probably a weeb.
10/10
EDIT: Remembered a game that gave me the same vibes and it's do you have akira points lol.
https://f95zone.to/threads/do-you-have-akira-points-final-golden-fever.26448/
Basically its corruption but wholesome.