I honestly don't understand such a high rating of this game. Almost every aspect of it is anecdotally bad.
Just for transparency: I finished ~80% of Book 1, couldn't anymore, deleted it altogether. So, maybe it becomes better later, but I couldn't see the point in continuing.
Good:
1) Interesting setting. Contemporary + medieval style with some gods and other references. Overall nice atmosphere.
2) Fine music
3) Native linux client (thank you, devs!)
Bad:
1) Writing. It has every bad smell imaginable. God-powered MC (Naruto on steroids + no development), deus ex machinas everywhere, random details or events contributing nothing to the story, while having little to no development of actual characters. And many more I couldn't remember at this point.
2) Romantic relationship. Again, horribly written. Every girl just wants to bang you or 'has' to bang you for whatever reason because.. because. The whole 'I have one girl that I love, and all others I just bang' plot is beyond ridiculous. And your 'loved', 'destined' one is totally ok with that. While simultaneously being a virgin who lets you after seeing you 5 times. And all other girls know that, and still want to bang you. It's just awful and makes no sense whatsoever.
3) Visuals. They are pretty outdated. Animations in H-scenes are either non-existent or lame at best. LIs are mid or worse.
4) Combat. Ooooh, the infamous combat mechanic. I honestly enjoyed it for the first few times, but later, oh boy.. You either lower the difficulty, which turns it into a time-waste, or you struggle for 5-20 minutes on each fight, because you have a horrible hand and have to replay it from save. And ideally, you have to do this almost every fucking in-game day!
5) Sandbox. I don't have any particular feelings about sandbox mechanics overall: I played a number of sandbox games, some I enjoyed, some -- I didn't. But this game takes it a step further into bs territory with TIMED sandbox. You have a limited amount of days, and without a walkthrough, you have absolutely no idea when some event might just end, and you have to replay this whole mess of a game just to get the scene or a dialogue. So, you either have to follow some guide precisely, or spend a few days devising an optimal strategy on every action you can take. And what for? This is not something worth so much effort.
Overall, I'm giving this game two stars only because it presents as a finished creation, and it is clear that some love is put into it. Pretty interesting ideas, but majorly failed execution. I hope the developers learn from it, because they have the potential.