"Kyoukaisenjou no Horizon: The Novel" is a Japanese light novel series written by Minoru Kawakami. Set in a futuristic world where nations exist on floating islands, the story follows Toori Aoi, a high school student who becomes embroiled in political and military conflicts. The narrative blends elements of science fiction, fantasy, and historical references, creating a complex and engaging plot. The series features a diverse cast of characters, each with unique abilities and backgrounds. It explores themes of friendship, loyalty, and the consequences of war, while incorporating intricate world-building and detailed explanations of its setting. The novels have gained popularity for their rich storytelling and character development.