It's little more than just a bundle of Koikatsu animations.
All the gameplay boils down to "Do every available position at this rank and get some RNG with specific body sizes and outfits, repeat 7 times".
Different hypno modes barely matter, because two of them are "character barely reacts" and two others barely have dialogue differences.
The technical part isn't bad and shows effort, but there's just no point to anything beyond opening up the full save and going through the positions.
All the gameplay boils down to "Do every available position at this rank and get some RNG with specific body sizes and outfits, repeat 7 times".
Different hypno modes barely matter, because two of them are "character barely reacts" and two others barely have dialogue differences.
The technical part isn't bad and shows effort, but there's just no point to anything beyond opening up the full save and going through the positions.