The Sorcerer of Forgotten Time

In his youth, the sorcerer Laurent Firence did not join the hero's party due to his stubborn nature, and after the great war between demons led by the Demon King and humanity, he spent his days consumed by regret. Following the defeat of the Demon King, an acquaintance with whom he had always been at odds joined the hero's party and left his name in history. However, the hero's party was completely annihilated. He thought bitterly that he could have managed things better, but it was too late. It was through sheer determination that he completed what would become the first time-reversal super-magic spell in history. To prove his own potential, he transcends time. ——However, standing in his way are the countless flags he had unknowingly raised during his youth. And the aftereffects that befell him when he cast the great magic. Can he, as a member of the hero's party, guide the world toward peace!? Can he pass his name down to future generations!? The struggles of the sorcerer who forgot time begin.