Saya no Uta is amazing, genuinely one of the best openings for a story ive ever read, and just such an interesting and unique concept specially for its time. His situation makes for an amazing bittersweet relationship with Saya, which was often grueling to read, in a great way. I really would absolutely worship this game if it wasnt for the authors fetishes being absolutely plastered throughout the game, literally derailing the games story in my opinion. Eventually all the mystery is gone and the game just becomes a disgusting noncon monster porn game, which feels specially as bad when the story is already extremely predictable.
Still a fine read, I guess. And the music is great.