I played the game for the last hours (pretty much right after my previous post), and my hard disk still isn't encrypted and no pop-ups asked me to donate to a bitcoin account lol. So yeah, I believe the game to be sane.
I love the concept, and the art-work is lovely, even though so young a protagonist doesn't really strike any erotic strings within me. In fact, except for the humunculus I didn't see any H-content at all yet. The game has more style and taste than the screenshots and the tags had me presuming.
Looking forward to see where this progresses towards!