Also, since new people are going to try out this wonderful game, I must tell you, first of all, go blind into this experience.
Yeah, you can get a bit stuck at times, but you can logic your way out of almost all puzzles this game throws at you, the only "unfair" thing is the pizza time, which I thought it was trial and error, though there may have been information I missed.
There are a ton of hidden interactions in the game, which makes it worthwhile to tinker with the mechanics and loop time and time again. Just remember to use saves, read the dialogues instead of skipping as they may give you great clues to advance and have fun!
In my opinion, it's the best succubus game there is and I wish I could forget all about it to play it blind once again