A skilled mercenary named Guts, destined to be the fearsome Black Swordsman, wanders with his massive sword in search of lucrative contracts. Unattached to any group until a fateful encounter with the Band of the Falcon, where he impressively battles and catches the eye of their leader, Griffith. After a humbling defeat by Griffith and a subsequent duel leading to his recruitment, Guts rises in the ranks of the Band of the Falcon within three years. His unmatched combat abilities complement Griffith's strategic genius, propelling the group to triumph after triumph on the battlefield. Yet, amidst their victories, a looming threat emerges, poised to alter Guts' fate in ways unforeseen.