As Inuyasha and Sesshomaru continue to duel for possession of the Tetsusaiga, both brothers discover the unexpected power of their respective inheritances. After the fight, an injured Sesshomaru is helped by the orphan Rin. Koga, the leader of the eastern wolf yōkai tribe, is seen attacking the villagers, in search for the shards of the Shikon Jewel. Sesshomaru finds Rin, who was killed by Koga, and revives her using the Tenseiga, realizing its true power.