In the province of Kai, a bumbling young samurai named Nobunaga learns that a demon has possessed his childhood friend's new husband, a feudal lord. With Kagome's clever help, the toad demon Tsukumo no Gama is driven out—though not without a struggle.

Inuyasha rescues Kagome by tricking Hiten and using the Tetsusaiga to defeat Manten. Hiten absorbs Manten's shard and gains immense power, attacking with lightning strikes. Inuyasha fends him off using only the sword's scabbard—until the blade itself responds and unleashes its true strength.