Based on the light novel by Touya published by Earth Star Entertainment, the story follows Fia, a girl who was known as the "Great Saint" in her previous life and saved the world, but now hides her identity as a saint after reincarnating. She joins a knightly order and grows alongside her companions in this "secret past life fantasy." Original illustrations are by chibi, with manga adaptation by Takuya Fujima.
The first key visual features protagonist Fia at the center, surrounded by fellow knights Enoch and Fabian against a castle backdrop.
■Cast
Fia Rood: Shion Wakayama
Clarissa Abernathy: Yukari Tamura
Enoch: Shun-ichi Toki
Fabian Wainer: Taiki Yamashita
Charlotte: Miyuri Shimabukuro
Zabillia: Shinnosuke Tokutomi
Savis Nerve: Yuichiro Umehara
Cyril Sutherland: Nobunaga Shimazaki
■Theme Songs
Opening: Kaya "Flare of Soul"
Ending: Utahime Dream All Stars "STELLAR"
■Broadcast
Scheduled to begin in October 2026
Official site: https://daiseijo-anime.com
©Touya / Earth Star Entertainment / Black Dragon Knights