Sometimes given as 'Hanmaru', born 1969, (Aomori Prefecture) is a Japanese artist whose works prominently feature themes of dysmorphic hermaphrodism and body transformation, as well as dozens of other sexual paraphilia. Most of his work has emerged within a paradigm of Hentai manga and images, but some has appeared in galleries; several of his pieces were part of Takashi Murakami's traveling Superflat exhibition. While Machino's work defies any easy categorization, it could be said to fall within the Japanese EroGuro (Erotic Grotesque) school, still somewhat loosely defined, which dates back to Dada-influenced, Showa-era Decadence.