Watch Makai Ishi Mephisto Watch now on Miruro - Free Anime Streaming The story takes place in the city of demons, Shinjuku, and follows the life of Mephisto, the most powerful demon physician. Series info Watch free DetailsFormatMangaStatusFinishedSourceOriginalCountryJapan GenresActionHorrorMysterySci-Fi TagsShoujoUrban FantasyDemonsAlchemyAnti-HeroSwordplayMale Protagonist RecommendationsBai Yao PuxxxHOLiC CharactersSoyogi KazuyukiMephisto Pheles (Supporting)