Music is a lamp that illuminates the hearts in the midst of despair. However, on a certain day around 2020 in the Western calendar, the "Dissonant Meteorite" suddenly flew down from the sky and brought with it monsters called "D2". This monster hates all kinds of "music" and destroys the humans and the world that play music.

Music is a lamp that illuminates the hearts in the midst of despair. However, on a certain day around 2020 in the Western calendar, the "Dissonant Meteorite" suddenly flew down from the sky and brought with it monsters called "D2". This monster hates all kinds of "music" and destroys the humans and the world that play music.