The official Twitter/X of the upcoming A Tale of the Secret Saint TV anime series have unveiled the main theme songs and latest character visuals for the show. The anime is expected to premiere in Japan in April 2026.
The anime’s main opening theme song is “Flare of Soul” by Kaya, while the ending theme song is “STELLAR” by Utahime Dream Allstars.
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TVアニメ『転生した大聖女は、聖女であることをひた隠す』
OP・ED 主題歌情報解禁
アーティストコメントも到着──────
オープニング主題歌#花耶 『Flare of Soul』
に決定
… pic.twitter.com/Qz7mlUEi7q
— TVアニメ『転生した大聖女は、聖女であることをひた隠す』公式 (@daiseijo_anime) November 15, 2025
Additionally, four new character visuals of Fia Ruud, Zavilia, Saviz Nav, and Cyril Sutherland have also been released.
Tomoe Makino (Please Put Them On, Takamine-san) is directing the anime series, with Naoki Murata (My Daughter Left the Nest and Returned an S-Rank Adventurer) as assistant director, Deko Akao (Sword of the Demon Hunter) as series composer and Satomi Kurita (Dahlia in Bloom: Crafting a Fresh Start with Magical Tools) as character designer. Felix Film is in charge of the animation production.
Meanwhile, the anime’s main voice cast includes:
- • Shion Wakayama as Fia Ruud
- • Shinnosuke Tokudome as Zavilia
- • Yuichiro Umehara as Saviz Nav
- • Nobunaga Shimazaki as Cyril Sutherland
The fantasy light novel series is written by Touya and illustrated by chibi. It was first published under Earth Star Entertainment’s Earth Star Novel label on June 15, 2019 and has released 11 volumes as of March 2025. The light novels first began as a Shosetsuka ni Naro web novel on January 6, 2019.
The series also received a prequel titled A Tale of the Secret Saint ZERO in 2022 and a 2019 manga adaptation by Mahito Aobe.
Seven Seas Entertainment releases the A Tale of the Secret Saint light novels and manga in English. It describes the main synopsis as:
Born into a long line of knights, Fia is determined to become a knight herself, just like all her siblings. But a brush with death awakens memories of her past life as a Saint–a woman who wields rare, powerful healing and protection magic–along with the ability to use that magic herself! The downside is that Fia also remembers her past life’s untimely death, and the danger she will be in if anyone finds out what she really is. She vows to stay on her knighthood path and keep her powers a secret forever! But how can she resist using her newfound powers when they’re just so useful?
Sources: A Tale of the Secret Saint Official Twitter (2), Crunchyroll News