Kiritsugu Emiya is the main protagonist of Fate/Zero. The master of Saber in the Fourth Holy Grail War, Kiritsugu is the husband of Irisviel von Einzbern, the father of Illyasviel von Einzbern, and the adoptive father of Shirou Emiya. Known as the Magus Killer, Kiritsugu once aspired to be a "Ally of Justice," but became jaded with this dream by the start of Fate/Zero. Though cold and stoic throughout Fate/Zero, upon saving Shirou from a fire in Fuyuki City, he found salvation through his new son. Kiritsugu dies prior to the events of Fate/stay night, but not before imparting his once lost dream onto Shirou. An alternate version of him appears in Fate/kaleid liner Prisma Illya, where he works overseas often.