The Single Arrow of Chaos is the one hundred forty-ninth episode of the InuYasha anime.
- Inuyasha and his friends hear of a holy being named Saint Hijiri, whom many have traveled to see as this Saint Hijiri can supposedly protect them.
- They encounter Hakudōshi and Entei once again and Inuyasha finds that he is unable to break through Hakudōshi's barrier, when suddenly a sacred arrow comes flying and breaks through Hakudōshi's barrier, much to everyone's shock; when they look back, the one who fired it is no longer there.
- Hakudōshi abandons Entei and retreats; Inuyasha lures the formidable horse demon into a cave and destroys it with his Bakuryūha; Inuyasha then examines the arrow fired by an unknown person, and, due to the arrow's great spiritual power, the group wonders if Saint Hijiri is actually Kikyō, who was thought to be dead.
A woman awakens, surrounded by servants. She asks for her newborn child, saying he should be crying and she cannot hear him. The servants tell her that her son was stillborn, then all fall dead. Kanna and Kohaku enter, holding the other infant. Kanna assures the lady that her child is not dead, he is here.
Meanwhile, Inuyasha and companions continue to seek the nest of Princess Abi. Along the way, they encounter the survivors from the village. The survivors speak of the Holy One all the survivors of the local attacks are seeking. Realizing this is a set up, Inuyasha and his companions hurry to stop the inevitable attack.
Kagura and Hakudōshi delay Inuyasha and friends while Princess Abi and her demon birds attack the shrine where the locals have flocked. Inuyasha attacks Hakudōshi with his Red Tessaiga, but is unable to break Hakudōshi's barrier. But the Holy One shoots a sacred arrow and dispels Hakudōshi's barrier.
Inuyasha uses the opportunity to attack, but Kagura flees with Hakudōshi's head. Entei attacks Inuyasha, but is eventually defeated when Inuyasha uses his backlash wave.