The official website for the Requiem of the Rose King (Bara-Ō no Sōretsu) anime has announced that the anime has been delayed to January 2022 due to “circumsances” surrounding the production. The anime was previously scheduled to premiere in Fall 2021.
Kentarō Suzuki is directing the anime at J.C. Staff, and Hiroki Uchida is supervising and writing the series scripts. Tsutomu Hashizume is designing the characters.
The story of Requiem of the Rose King is described as:
Richard’s father, the patriarch of the House of York, is poised to become king of medieval England during the bloody Wars of the Roses. But just as success is imminent, he is abruptly cut down. Plunged into despair, Richard acts out in revenge and must face a powerful and beautiful new enemy.