Nanika is a mysterious supernatural being associated with the Zoldyck family in Hunter x Hunter, residing within Alluka Zoldyck. She is known for her extraordinary wish-granting ability, which can fulfill almost any request, but at a severe and often deadly cost if her demands are not met. Nanika plays a crucial role in the series during the 13th Hunter Chairman Election arc, where her powers are central to saving Gon. Her existence also raises major questions about identity, control, and the nature of the Zoldycks.