I know the dev had made two pretty obscure games before making a puzzle hentai game that was like this one, and that one got a bit of attention. I guess they concluded that people played for the Katame (hardening fetish)? I was more into the casual sex but i could ignore the Katame. This one seems to be more focused on the hardening fetish than the last one, but at least we get these cute sprites of the characters. I wont judge the devs for it cuz who are we to judge? i also have unusual fetishes, we are here to nut no matter what is in front of us i guess