Sleepy Princess in the Demon Castle

Sleepy Princess in the Demon Castle is a 2020 anime based on the manga series by Kagiji Kumanomata. It ran in Japan from October 6, 2020 to December 22, 2020. Funimation Entertainment is producing an English dub of the series, which premiered on the FunimationNow streaming service on February 22, 2021.