What is a fanlisting?

"A fanlisting is a web clique that lists fans of a particular subject. Unlike most web cliques, a person does not need a web site in order to join. Fans from around the world submit their information to their approved fanlisting and they are then listed to show their love for the subject."
- animefanlistings.com

About Saya no Uta

Saya no Uta is a visual novel by Nitroplus first released in 2003. It was written and directed by Gen Urobuchi, also known for his later work on psychological thriller series like Psycho-Pass and Puella Magi Madoka Magica. The game centers around its protagonist, Sakisaka Fuminori, who loses his parents in a fatal car accident. He survives due to a highly experimental neurosurgery, but the treatment leaves him with an undocumented form of agnosia that makes the world - and everyone in it - appear as masses of rotting flesh.

The only bright spot in his life after the accident is Saya, a beautiful girl who retains her human looks even within Fuminori's haunting view of the world. As the story progresses, we learn more about the mysterious Saya, and we see Fuminori slowly slip past the point of no return as he becomes more and more detached from reality.