The Legend of Black Heaven (課長王子 )

Once he was Gabriel Tanaka, lead guitarist for Black Heaven, the hottest band around. His life was filled with passion and excitement, but no longer. Now he's just Ouji Tanaka, saddled with a mundane job, little pay, a shrewish wife, and a young son. The only thing he has left are the memories of his youth until an odd and beautiful woman asks him to pick up his guitar once more, and help save the galaxy with his song.