Tags: Anime, Cartoon.
Black Heaven (課長王子 Kachō-Ōji) also referred to as The Legend of Black Heaven and Kacho-Ōji is a thirteen-episode anime TV series about the middle-aged members of a short-lived heavy metal band and their unexpected role in an alien interstellar war. The Japanese title of the series is a multi-layered pun; it can be translated as section-chief Oji old section-chief or literally Section Head Prince.