Grimgar of Fantasy and Ash (灰と幻想のグリムガル, Hai to Gensō no Gurimugaru), released by Funimation as Grimgar, Ashes and Illusions, is a Japanese light novel series written by Ao Jūmonji and illustrated by Eiri Shirai. The story follows a group of people who suddenly find themselves in a fantasy world with no memories from before their arrival, and chronicles their struggles to survive and make a life for themselves as goblin slayers. Mutsumi Okubashi began serializing a manga adaptation in Gangan Joker in 2015. The novels were adapted into a 12-episode anime television series that ran from January to March 2016. An original video animation was released in March 2016. The anime is licensed in North America by Funimation, while J-Novel Club has acquired the rights to publish the original novels in English and Yen Press publishes the manga adaptation.