Eiji Shinjo, a skilled swordsman, carries the weight of a fateful encounter with Gaia that was interrupted by a sinister syndicate. Amidst the torment of unfinished business and the search for his missing brother, Sho, a new enigmatic warrior emerges. This mysterious figure targets past tournament champions, mirroring their techniques, raising suspicions that it could be Sho himself. As Eiji and Kayin, his trusted comrade and rival, strive to uncover the truth, they face the looming threat of becoming victims. The Organization's sinister ambitions for global dominance hold the key to this enigma. The imminent clash among elite fighters will determine the fate of all, with Eiji risking not only his own life but the lives of his companions, notably Ellis.