A Tale of the Secret Saint

Fia Ruud, a young girl, uses a healing potion on a black bird in the forest, which turns out to be a dragon that attacks and nearly kills her. As Fia is dying, she remembers that she was the great saint Seraphina 300 years prior in a previous life, which causes her to regain the power of a saint. Using this power, Fia saves herself enters into a contract with the dragon Zavilia. Fia decides that it is best if she hides her true identity. ==Characters==

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Light novel Written by Touya, A Tale of the Secret Saint began serialization on the user-generated novel publishing website Shōsetsuka ni Narō on January 6, 2019. It was later acquired by Earth Star Entertainment who began releasing it with illustrations by chibi under their Earth Star Novel imprint on June 15, 2019. A spin-off light novel series, titled A Tale of the Secret Saint Zero, began publication on July 15, 2022. Volumes A Tale of the Secret Saint Zero Manga A manga adaptation illustrated by Mahito Aobe began serialization on Earth Star Entertainment's Comic Earth Star manga website on December 19, 2019. The manga's chapters have been compiled into fourteen volumes as of April 10, 2026. Its chapters have been compiled into five volumes as of April 10, 2026. It will be produced by Felix Film and directed by Tomoe Makino, with Naoki Murata serving as assistant director, Deko Akao handling series composition, Satomi Kurita designing the characters, and Kenichiro Suehiro composing the music. The series was originally scheduled for April 2026, but was later delayed "in order to aim to provide a more enjoyable work for everyone". It is set to premiere in October 2026. The opening theme song is "Flare of Soul", performed by , and the ending theme song is "Stellar", performed by Utahime Dream All Stars. ==Reception==

By June 2024, the series had over 2.7 million copies in circulation. The spin-off series was also ranked seventh in the same category in the 2026 edition. ==See also==