After swearing off heroism in a final act of defiance, Baek Jinwoo, humanity's savior, meets an unexpected fate. Reborn as Riley Finn Epheletta, the inexperienced scion of a renowned lineage of sword wielders, he faces a pivotal choice when danger looms at his doorstep. Will Riley embrace his legacy as the 'Lazy Sword' and fulfill his destined transformation into a fabled swordmaster, or will he watch helplessly as those dear to him perish?