In the fall of his third and final year of middle school, Hajime Aono, a violin prodigy, stopped playing violin for his own personal reasons. But it was also that year when he got to know a girl ...

High-school student Amate Yuzuriha lives peacefully in a space colony floating in outer space. But when she meets a war refugee named Nyaan, Amate is drawn into the illegal mobile suit dueling ...