Hatena Illusion (はてな☆イリュージョン, Hatena☆Iryūjon) is a Japanese light novel series by Tomohiro Matsu, with illustrations by Kentaro Yabuki. A manga adaptation by Pochi Edoya began serialization online via Niconico Seiga website in November 2018. An anime television series adaptation by Children's Playground Entertainment aired from January to June 2020.