Ishura (Japanese: 異修羅) is a Japanese light novel series written by Keiso. It originated on the novel posting websites Kakuyomu and Shōsetsuka ni Narō, before being acquired by ASCII Media Works, who published the series with illustrations by Kureta under their Dengeki no Shin Bungei imprint. As of February 2024, nine volumes have been released. A manga adaptation with illustrations by Meguri began serialization in Kodansha's Monthly Shōnen Magazine in March 2021. As of December 2023, its chapters have been collected into three tankōbon volumes. An anime television series adaptation produced by Passione and Sanzigen aired from January to March 2024. A second season has been announced.