While searching through the feudal age for the broken pieces of the wondrous Shikon Jewel, Inuyasha, Kagome Higurashi, and their allies fall under the pursuit of Menoumaru Hyouga—a demon roused by one Shikon shard, now chasing Inuyasha's ancestral sword Tessaiga. After a confrontation between the fathers of Inuyasha and Menoumaru, the blade becomes the sole key to restore Menoumaru"s legitimate family legacy.
Yet when Menoumaru ambushes Inuyasha, he learns that only the sword"s rightful bearer can command it. Resolute to secure his goal, he seizes Kagome to compel Inuyasha to wield the blade and unleash the sealed might of the Hyouga line. With their steadfast companions, Inuyasha and Kagome confront Menoumaru, unaware that his dark designs and immense threat will imperil not only their present realm but also its far‑future destiny for the ages.