I just finished it! It was kinda depressing and sad (especially in the true end when Sai didn't go home with Lacie) but also amazing! I enjoyed it a lot! I'm willing to replay it again and again until I discover all of the possible things I can do... For example I didn't find runes for Rune, and I didn't save Aoi, and I couldn't open that mysterious box in Miss Knives' house, etc... But I'll see.
Hope you finish the game soon... I wish I could help but I'm just a broke person hehe...