Harem (ハーレムもの) (short for Haremumono) is a genre of manga and anime in Japan. The genre is characterized by a protagonist surrounded, usually by large amounts, of two or more members of the opposite sex. The most common is a male-oriented harem anime where the main male character is surrounded by a group of females. In the opposite form it is referred to as a reverse harem, or gyakuharemu (逆ハーレム). Although most harems or reverse harems are for the opposite sex there is also yuri and yaoi harems where the protagonist is surrounded by a group of the same sex.