Temari Demon and Arrow Demon

Episode 9 covers Chapters 16 and 17 and is built almost entirely around the battle at Tamayo's home. Susamaru, the Temari Demon, batters the house with deadly thrown balls while Yahaba, the Arrow Demon, bends their paths through the air. The fight reveals that both belong to the Twelve Kizuki who serve Muzan directly, and it pushes Tanjiro to chain his Water Breathing forms together to survive.

The siege begins

Susamaru's barrage destroys Yushiro's cloaking art and beheads him, though he later regrows the wound. Tanjiro sends Nezuko to guard the injured woman in the basement and faces Susamaru alone, noticing her scent is far thicker and stronger than the demons he has met before.

Reading the arrows

Susamaru reveals her status as a member of the Twelve Kizuki and sprouts extra arms to hurl more balls at once. Unable to see why the balls curve, Tanjiro accepts a talisman from Yushiro that lets him perceive Yahaba's guiding arrows. With Nezuko distracting Yahaba in the trees, the arrows fade and Tanjiro slices apart the balls with Third Form: Flowing Dance, then cuts off Susamaru's arms.

Defeating Yahaba

Yahaba flings Tanjiro through the grove and into the air, but Tanjiro saves himself with Eighth Form: Waterfall Basin. Realizing he must redirect the arrows without touching them, he combines the Sixth and Third Forms into a twisting attack, then beheads the Arrow Demon with an improved Lateral Water Wheel.

The eyecatchers loosely recreate the cover of Chapter 16. One scene is original to the anime: Yushiro turning invisible with his Blood Demon Art to strike Susamaru does not appear in the manga. During the fight Nezuko repeatedly glimpses her late mother Kie and her brother Rokuta in Tamayo and Yushiro, which steadies her resolve to keep fighting.