It is directed by Yasuhito Kikuchi, with Naruhisa Arakawa handling series composition, Kazuto Nakazawa designing the characters and Kōichi Korenaga composing the music.
The series is about the middle-aged members of a short-lived heavy metal band and their unexpected role in an alien interstellar war.
But his life wasn't always so dull; 15 years ago he was known as "Gabriel", lead guitar of a short-lived heavy metal band called "Black Heaven".
Ouji's life takes a sudden turn when he is invited by an enigmatic woman to pick up his Gibson Flying V and once again display his legendary guitar skills.
Little does he know the effects this will have on his family, or the other remaining members of Black Heaven, on an alien interstellar war with a mysterious ultimate weapon, or on the fate of the planet Earth.