"Kyoukaisenjou no Horizon: Zero" is a Japanese light novel series written by Minoru Kawakami. It is set in a post-apocalyptic world where various factions vie for control over territories. The story follows Horizon Ariadust, a girl with a mysterious past, and her companions as they navigate political intrigue and battles. The series combines elements of science fiction and fantasy, featuring advanced technology and magical abilities. It explores themes of identity, loyalty, and the consequences of war. The narrative is known for its complex characters and intricate world-building, appealing to fans of both genres.