Touhou Hyouibana ~ The Antinomy of Common Flowers (東方憑依華 ~ Antinomy of Common Flowers, lit. "Flowers of Possession"), often abbreviated to AoCF, is a fighting video game developed by Twilight Frontier and published by Team Shanghai Alice for Microsoft Windows in 2017. It is the latest fighting game in the Touhou Project series, being a continuation of the extra story mode from Urban Legend in Limbo's PlayStation 4 port, released in 2016. Antinomy of Common Flowers ports for the PlayStation 4 and Nintendo Switch port were announced in May 2019, and released on April 22, 2021.