Tensei shita Daiseijo wa, Seijo de Aru Koto wo Hitakakusu  

A Tale of the Secret Saint, A Tale of the Great Saint, The Reincarnated Great Saint Hides That Shes a Saint, 転生した大聖女は、聖女であることをひた隠す, The Reincarnated Great Saint Hides That She's a Saint, Tenshou shita Dai Seijo wa, Seijo de Aru Koto wo Hita Kakusu

Fia has long aspired to become a knight, despite being born into a family of skilled warriors. Although she lacks talent compared to her kin, she remains determined to prove her worth through rigorous training. On the day she is tasked with slaying a small demon, she encounters a dragon instead! Injured gravely in the encounter, she is reminded of her past life as a powerful Saint who defeated the Demon King. However, her previous life was marked by pain and suffering due to her status as a Saint, causing her fear of ever embracing that role again. With her former magic reignited, she may become a more powerful knight than she ever imagined-but only if she can endure long enough.