Eiyuuou, Bu wo Kiwameru Tame Tenseisu: Soshite, Sekai Saikyou no Minarai Kishi S01

The heroic king "England", a holy knight and master of all, gazes upon the empire he built with his own capable hands as he lies on his deathbed. After dedicating his life to governance and the well-being of his citizens, his unfulfilled wish is to live again, this time for himself. The life of a warrior that he had dedicated himself to before ascending to power. Alyssia, the goddess of fate, hears his request and smiles, and sends his spirit to a distant future. The gods operate in mysterious ways - not only is England now the daughter of a noble family, but at her first coming-of-age celebration at the age of 6, they do not recognize her as qualified to begin her knighthood. However, for a woman with England's ambition, this is less a setback and more a challenge, as she has been reborn to overcome it. "The blood that flows through your veins is not what makes you a knight, but the blood you've shed in the battlefield!"