Mirai ni Tobasareta Kensei, Nakama no Shison wo Mamorutame Musou Suru

In the aftermath of a climactic battle with the Demon Lord, Isamu, a member of the esteemed "Sword Saint" party, finds himself catapulted 200 years into the future. His desperate attempt to shield his comrades from the catastrophic magical energies unleashed during the final confrontation has left him lost and without direction. Fate, however, intervenes in the form of Cecilia, a young woman who is the descendant of the original hero. Guided by the prophetic traditions of her ancestors, she takes Isamu under her wing, pledging to provide for his well-being. In return, Isamu resolves to safeguard Cecilia, thereby fulfilling his duty to his former comrades.