Harem is a subgenre of romance literature that features a male protagonist surrounded by multiple female love interests. The word "harem" originally referred to the private living quarters of a Muslim ruler, where his wives and concubines would reside.
In harem stories, the male protagonist often has a "harem" of female characters vying for his attention and affection. These female characters may have distinct personalities and qualities that appeal to different aspects of the male protagonist's personality, and they may engage in various romantic and sexual relationships with him.
Harem stories can take many forms, including novels, manga, and anime. The setting may be a contemporary urban environment, a historical period, or a completely fantastical world. Harem stories may also include elements of fantasy or paranormal, with the female characters being supernatural creatures such as vampires, werewolves, or demons.
Harem stories often explore themes such as power dynamics, jealousy, and the different types of love and relationships. The storyline may follow the male protagonist as he navigates the complexities of having multiple love interests, as well as dealing with external obstacles such as societal expectations or supernatural threats.