Legend of Black Heaven, The DVD Complete 1-13 (Anime) - English
Oji Tanaka has a wife, a child and a mundane job as a salary man in Tokyo's modern society. But life wasn't dull for him to begin with; 15 years ago, he was known as "Gabriel", leader of a short-lived heavy metal band called Black Heaven. Oji's life gets a sudden change in direction when he is invited by a mysterious blonde woman named Layla to pick up his Gibson Flying V and once again display his "legendary" guitar skills, not knowing that his music generates power for a massive weapon in an intergalactic war.
From there on Takumi struggles to cope with the events unfolding around him, and is soon unaware of what is real or a delusion. As his fate opens up before him, the perpetrator behind the 'New Gen' events attempts to find him, leading him into a world where nothing is as it seems.