The fact that most of us aren't even faxed by this is very telling.
I love me some drpgs, kind of a shame that so many of them suffer from excessive "fanservice". I mean, Dungeon Travelers had great gameplay and mechanics but the pedo thing was just too much.
This is what the game is. This isn't unexpected between the NSFW in the thread title and the entirely representative thumbnail. Where you typically see reactions is where these things pop up without belonging, in games with wider, more general appeal that isn't, or at least shouldn't be, tied to sexuality. Especially when it's contextually jarring. This is as opposed to when the content is as surprising and unexpected as finding water in an ocean because that's literally what the game as a whole is trying to be.