Koga wants to defeat Naraku in order to avenge the deaths of his wolf yōkai tribe. Naraku presents his newest incarnate detachment, Juromaru, challenging Koga to a match. InuYasha soon shows up and combats against Juromaru, later discovering that Kageromaru lies dormant within Juromaru. Inuyasha and Koga reluctantly team up to fight against the devastatingly fast duo in spite of protecting Kagome. InuYasha destroys Juromaru and Kageromaru by way of the Tetsusaiga.