Kachou Ouji

Ouji Tanaka lives a quiet life with his family and a routine office job in Tokyo. Fifteen years earlier, he was the frontman of the brief but notable metal band Black Heaven, known by the stage name "Gabriel." His peaceful existence is disrupted when a mysterious woman named Layla asks him to play his guitar again. He is unaware that his musical abilities fuel a powerful weapon involved in a conflict spanning multiple galaxies.