Episode 139

The Great Duel at Shoun Falls is the 139th episode of the InuYasha anime.

Plot
As Hoshiyomi hovers overhead with Kagome in his possession, encircled by his demon ninjas, Inuyasha and Akitoki are joined by the Sango, Miroku, Kirara, Shippo and Myoga.

After a failed attack by Inuyasha, where the Tessaiga does not transform, Hoshiyomi offers an ultimatum: The Ken blade for Kagome. He leaves for the Furai shrine at the Shoun Falls.

After ignoring words of caution from Miroku, InuYasha and Akitoki head to Kagome's rescue, with the others close behind. As they approach the shrine, they are repelled by a barrier and separated.

Each confronted by a demon ninja, the companions battle as they seek each other and Kagome. Tessaiga fails Inuyasha again during battle, remaining nothing more than a rusty blade.

Hoshiyomi has begun preparations to merge the Ken and Kon blades when Kagome awakes. Hoshiyomi tells the story of his betrayal by his love, the female samurai, Tsukiyumi. He also mentions Mount Hakurei, the previous resting place of the Kon blade. Hoshiyomi further reveals his plans to use Kagome's spiritual power - so like his lost love's - to restore the Naginata of Kenkon and destroy humankind.

The Ken blade begins to magically draw towards the Kon blade and the shrine, dragging Akitoki with it. Meanwhile Sango, Miroku and InuYasha continue to battle the demon ninjas, and finally turn the tide in their favor and defeat the demon ninjas.

The Naginata of Kenkon is restored as InuYasha and companions arrive at the shrine. Hoshiyomi explains the power of the Naginata of Kenkon, and demonstrates its powers.