In the 1987 tokusatsu series Kamen Rider Black, Nobuhiko Akizuki is tragically transformed into Shadow Moon, the Century King created by the evil cult Gorgom to rival his stepbrother Kotaro Minami (Kamen Rider Blac). Born under a solar eclipse and infused with a King Stone, Nobuhiko becomes the dark and relentless enforcer of Gorgoms power. Armed with his grudge against Kotaro, Shadow Moon wages war with brutal strength until his final confrontation that seals their fates and ultimately reshapes his destiny.