Monster girl hentai is a subgenre within the larger category of hentai, which itself falls under the broader umbrella of adult anime and manga. Hentai refers to Japanese adult animation and comics, while monster girl hentai specifically features characters or creatures that are part human and part monster or mythical creature. These characters may have unique appearances, abilities, or characteristics that differentiate them from typical human characters. The term "hentai" implies explicit sexual content involving these monster girls. This subgenre caters to fans of both hentai and fantastical creatures, often blending elements of mythology, fantasy, and adult themes.