The Nasuverse is a fictional universe created by Kinoko Nasu, encompassing various works, primarily visual novels, light novels, and anime. It includes popular titles like Tsukihime and Fate/stay night, featuring interconnected themes, characters, and lore. The universe is known for its complex magic systems, supernatural elements, and deep philosophical questions. Central to the Nasuverse are concepts like Heroic Spirits, Magic Circuits, and the Holy Grail War, which explore the nature of humanity, conflict, and the consequences of power. The narrative often intertwines historical figures and mythological elements, creating a rich tapestry of storytelling that appeals to fans of fantasy and adventure.