Tougen Anki: Legend of the Cursed Blood (桃源暗鬼, Tōgen Anki) is a Japanese manga series written and illustrated by Yura Urushibara [ja]. It has been serialized in Akita Shoten's shōnen manga magazine Weekly Shōnen Champion since June 2020. An anime television series adaptation produced by Studio Hibari premiered in July 2025.