Shin no Nakama janai to Yuusha no Party o Oidasareta node, Henkyou de Slow Life suru Koto ni shimashita

Unable to keep pace with the brutal fighting on the front lines of the war against the Demon Lord's army, Red is ultimately cast out of the Hero's party. Ashamed of his own shortcomings, he moves to a far-off frontier region where no one knows his face or his past. Yet once he works through the gloom of leaving his adventuring days behind, he finds himself genuinely eager to embrace a quiet new life as an apothecary—a peace that becomes considerably livelier when Rit, a former party member and a princess in her own right, pays him an unexpected visit!