2020 12 Episodes Japanese & English
M Recommended for mature audiences 15 years and over

A World Where Music Doesn't Exist

In a world without music, young Echo was there the day legendary “Prayer” Jimi Stonefree and his mecha disappeared while fighting the mysterious Earless. Ten years later, he meets an amnesiac young girl named μ(Mu)who has an input jack on her back. Could she be a “Prayer” like Jimi?