失格紋の最強賢者; The Strongest Sage of Disqualified Crest; ; The Strongest Sage with the Weakest Crest; Shikkaku Mon no Saikyou Kenja - Sekai Saikyou no Kenja ga Sara ni Tsuyoku naru Tame ni Tensei Shimashita; Marked for Failure, the World's Strongest Sage Reincarnates for a Do-Over!
In a certain world, there was someone who excelled in magic combat, people called him 『Sageã€. Seeking the strongest combat art, he devoted himself to research every magic and combat arts in existence. And the conclusion he arrived at was very cruel, 『My body is not fit for magic combatã€. Yet he didn’t give up. He sealed his own soul with a magic art, and was reborn in a far-off future. And the magic theory in the completely changed world he saw there was of unbelievably low level.