The Hidden Saintess

Summary:
Many years ago, there lived a knight who loved a saintess. Not wanting to hurt her with his personal feelings, he made sure to always keep a safe distance. However, the saintess eventually died in his arms and the devastated knight swore, with bitter anguish, ‘If you get a chance at another life, I’ll make sure that you will no longer live as a saintess.’ After a long 300 years, the saintess was reborn. Will their wishes finally come true in this life?