The One Being Sung

is a Japanese adult tactical role-playing visual novel by Leaf which was released on April 26, 2002 for Windows. A PlayStation 2 version was developed by Sting, and released by Aquaplus on October 26, 2006. It was later ported to PlayStation Portable on May 28, 2009. Two internet radio programs based on it aired on the Oto Izumi broadcast station. Three manga adaptations were published by ASCII Media Works. A 26-episode anime adaptation by OLM aired in 2006 and is licensed in North America by Funimation. Three OVA episodes were later produced by Aquaplus and Chaos Project, released between 2009 and 2010. A sequel series,, by White Fox premiered on October 4, 2015.

Plot
When I came to, I was standing somewhere in the wilderness where the snow was falling. I don’t know why I’m in a place like this. Rather, my memory… I can’t remember what kind of person I am, or even my name. I stood still, shocked at the situation. But, as if to ridicule me, a giant bug-like “monster” suddenly attacked. I was cornered as I desperately tried to escape. I was in an extremely dangerous situation. But then a girl gallantly appeared. Her name was Kuon, and this beautiful girl with animal-like ears and a tail, saved my life.

Official

 * Official anime website (in Japanese)