曲谱简介：

Ayano no Koufuku Riron Ayano no Koufuku Riron is Shizen no Teki-Ps 16th published song and 11th one in his Kagerou Project series. And Ayano no Koufuku Riron tells the story of Ayanos past. It starts off when Kido, Seto, and Kano are introduced to Ayano by her mother. They believe that they are monsters due to their red eyes, but Ayano cheers them up by saying that red is the color of heroes. Following, she shows them a picture book of a hero story while wearing a red scarf. Soon Ayanos mother dies due to an accident. Ayano tells herself that she has to be a good big sister and cheer her siblings up. One day she sees her dad planning an experiment on her friends, Takane and Haruka. Devastated by this, she tries to save them by committing suicide, and thus enters the Heat Haze.