Fate/kaleid liner Prisma Illya is a manga series by Hiroshi Hiroyama (also known as KALMIA), serialized in Kadokawa Shoten's Comp Ace magazine from 2007 to 2008. It is an alternate universe spin-off of the Fate/stay night visual novel by Type-Moon, with Illyasviel von Einzbern as the protagonist. Various other characters from Fate/stay night and its sequels and spin-offs also appear. A sequel series titled Fate/Kaleid liner Prisma Illya 2wei! was serialized from 2009 to 2012. A third manga series titled Fate/Kaleid liner Prisma Illya 3rei!! began serialization in 2012.