Harem (genre)
Daryl Surat, a contributor to Otaku USA, suggests that many harem anime are built around one core fetish (e.g. meido (Hanaukyo Maid Team), meganekko (G-On Riders), lolicon (Rozen Maiden), nuns (Amaenaideyo), large breasts (Eiken)). There are also reverse harem anime in which a female protagonist is surrounded by gorgeous boys: Ouran Host Club and The Wallflower being the best known.