Sima Yi (Legend Heroes)

Sima Yi (사마의) is the most eminent of the Angels who oversee the Dream Battle and the main antagonist of the Korean Tokusatsu series Legend Heroes.

Initially appearing as a neutral observer, Sima Yi later becomes directly involved in the Dream Battle when he becomes the contract Angel of the Legend Hero Cao Cao. Though seeming to be an ally at first, Sima Yi is revealed as a villain towards the end of the series, having been the real mastermind behind the experiments of Zhang Jue. He later becomes proactive in creating Dark Warlords and tricks his Warlord into letting him overtake him with the Angel Piece, transforming him into Overlord Sima Yan and allowing him to complete the final stage of his plan, to win the Dream Battle and use the Royal Seal to kill off the other Angels and become ruler of the Human World, with humans serving under him as his slaves.