Inuyasha must defend himself against the corrupted human Tonshu, who turns out to be responsible for the creation of the mysterious sword known as Dakki. Tonshu is intent on taking Inuyasha's sword, the mighty Tetsusaiga, and Dakki's unique properties pose a serious threat to Tetsusaiga. If Inuyasha loses this battle then the Tetsusaiga will be gone for good.
