Note: this is a review of the 0.13.0 version so it has likely gotten only better since I downloaded an up to date version!
If you have not played this game yet you need to do so! Though play at least until you reach act 2. Act 1 seemed like it was open world but it is really very linear, however as soon as you reach Act 2 the game opens up and is amazing! I came for the sex, but I stayed for the great stories and characters.
The sex scenes were varied and well done though, especially in act 1, it was somewhat hard to see when I could advance to a new sex act with someone and for a game that lists the times you have had various sex acts with various people not getting to choose really which type of sex act you do except in a very few circumstances was strange. Communicating somehow better that act 1 is linear and you have certain things you need to do in a certain order plot wise before the game opens up would be nice.
Once the game opens up however every system is fun and all the characters are great! Particular stand outs for me were the story with the dream world queen - which was as moving as the best triple AAA game stories really - and the minotaur's story which had a very good shonen anime story vibe (real strength is friendship and heart!) that I enjoyed. The story at the end after you go to your grandfather (which really what a fun way to do a mysterious plot central character) to get leads really picked up and was quite interesting. Emma's story is also interesting and well done and wow WHO DOES HER SINGING? and WHERE CAN I BUY HER SONGS? Seriously. This was almost as good as the karaoke songs in the Yakuza franchise. Get this individual a recording contract!
The way I judge non-plot critical story elements of a game is if I do them and enjoy them as much as the story relevant material, and all of it here I did. The school section was brilliant taking over the school and finding out about those characters and turning them into my personal harem was quite fun. I expect it might be for legal reasons the school was called a college because it looked more like a highschool - I would be fine with calling it a highschool.
Having children with all the women in my harem and then going to play with them at the farm was brilliant! Completely non plot relevant but great fun! I loved especially the tea party group play. Annie is an amazingly cute character and I delayed plot at some points to make sure I had found all the randomish events with her. On a "dark" run (which really doesn't seem to be as possible as the game description makes it seem) I would love the ability to awaken her a bit ...
Every game has flaws of course - it was unclear to me how the quirk system worked. I opened up some during play, but it was unclear which ones could be unlocked and which ones couldn't yet and if unlocking them had any story/game play mechanics. The girl who you can turn Yandre certainly had some interesting interactions and did make me feel like well she could actually kill me here - but she never really did and I fucked every woman in the game and had children with all of them but her. The exploration sections are also somewhat frustrating as I can never be sure when I have found everything. I think I did as it stopped giving me things I hadn't seen before. Maybe add a map to the crystal store for these areas? The only way really to get crystals also seemed to be from the random tasks from the mysterious merchant (an incredibly entertainingly written character) and the eldritch potions seemed to not do anything. I also had three costumes left to unlock (one for Gwen and two for Jessica) that I couldn't for the life of me figure out how to get.
Overall this is a very impressive game that I will definitely be following and likely throwing some money at soon!