Kenseijo Adel no Yarinaoshi: Kako ni Modotta Saikyou Kensei, Hime wo Sukuu Tame ni Seijo to Naru

Blind swordmaster Adel is renowned across the continent as the hero who brought peace to a war-torn land. His unmatched skill with a blade was forged through trials that tested both body and soul, leaving him with scars that run deeper than the surface. In the midst of his darkest hour, it was the kindness of Princess Euphinia that gave him purpose beyond the battlefield, inspiring a vow to protect what truly matters. When fate presents him with an extraordinary opportunity to revisit the past, Adel finds himself in an unexpected new form—one that challenges everything he thought he knew about power and identity. Now armed with both his legendary swordsmanship and mysterious new abilities as a Saint, he must navigate a world on the brink of chaos while keeping his true nature hidden. His mission: to prevent the tragedies that once shaped his destiny and forge a new path forward. This is the story of a warrior given a second chance, where the greatest battles are fought not with blades, but with the courage to change fate itself. (Source: J-Novel Club)