Tensei shita Daiseijo wa, Seijo de Aru Koto wo Hitakakusu Zero: The Great Saint of Remembrance  

The Great Saint Who Was Incarnated Hides Being a Holy Girl Zero, A Tale of the Secret Saint Zero, 転生した大聖女は、聖女であることをひた隠すZERO～The Great Saint of Remembrance～

Three centuries have passed since Fia and her companions embarked on their journey through Náv. At that time, Princess Serafina, the blind second princess of the kingdom, resided secludedly in the forest with only the forest deities and Sirius Ulysses, her cousin and young knight captain, for companionship. Despite living a tranquil life, Serafina's destiny was about to take a dramatic turn when she discovered she possessed latent abilities. This marked the beginning of her journey towards becoming the legendary Great Saint!