The swordsmith Toshu forged a demon-blade using one of Ryujin’s scales, and the Dakki was born. Every time Inuyasha tries to attack, he is undermined by demonic energy. The wielder of the Dakki is trying to steal the Tetsusaiga’s demon power. Will Inuyasha be able to win against the Dakki!? In the meantime, Koga faces off against Moryomaru in an attempt to save the children of the Wolf-Demon tribe who had been afflicted by the poisonous moth.