The art, the characters, the progression... everything is kinda fine I guess, but it feels too short. Since the only difficulty gameplay-wise are the quizz (unless you use the rollback), it forces you to pay attention to the info you are told about the history of the world. So by the end ofthe game you finally got the firls to join together, you have an objective, the succubus got her body back, you are on a quest to defeat an evil group who are trying to create some new magic, you know about the world's factions and... the game ends.
Apart from that, it's a VN with next to no gameplay. Actually a classical VN would be better, as you would not wonder where you need to go to make the story advance (only happens once or twice but it can be really nervebreaking)
Ultimately you're better off playing Mist. Same guy, same artstyle, better story, characters, design, animation and an actual gameplay beyond reading.
Apart from that, it's a VN with next to no gameplay. Actually a classical VN would be better, as you would not wonder where you need to go to make the story advance (only happens once or twice but it can be really nervebreaking)
Ultimately you're better off playing Mist. Same guy, same artstyle, better story, characters, design, animation and an actual gameplay beyond reading.