Kyubey is a mysterious, cat-like creature from the anime series Mahou Shoujo Madoka Magica. As an Incubator, Kyubey plays a pivotal role in the narrative by forming contracts with young girls. In exchange for granting them a single wish, these girls become magical girls tasked with fighting witches. Kyubey's true nature and motivations are shrouded in mystery, as it is revealed to belong to an alien species that seeks to harvest emotional energy to counter entropy in the universe. Kyubey's seemingly emotionless demeanor and manipulative tactics often make it a morally ambiguous character.