Kohtaro Minami (future)

"I won't kill you, Kohtaro, because I am you"

- Kohtaro speak to himself.

In a possible future, Kohtaro Minami/Kamen Rider Black was secretly brainwashed by Gorgom and become their leader Century King Black Sun (世紀王ブラックサン) in 2019. He ruined almost all the earth civilization by nuclear bombs and was called Demon (魔王) by survivors.