Episode 29 (Hanyō no Yashahime)

The Girl Named Rion is the twenty-ninth episode of Hanyō no Yashahime, and the 5th episode of the second season titled "The Second Act."

Summary
The Half-Demon Princesses befriend Rion, the only child of Beast King Kirinmaru of the Dawn, who had perished six centuries previously but had her spiritual essence perpetually bound to the earthly plane by the deep obsessive fatherly love Kirinmaru still has for her.

With her own strength and resolve to put a stop her father's ambition to bring forth the Degenerate Age foretold by the Sacred Tree of Ages itself, Rion is able to sustain her mind and enduring spirit within an artificial physical form and presents Towa with the universally ancient Star-Slicer Flute that transforms into the supremely powerful star sword the Zanseiken! With a universally powerful demonic weapon equal in strength to the Bakuseiken wielded by Kirinmaru, the Half-Demon Princesses are ready to face anyone or anything either Kirinmaru or Zero send their way.

Plot
To be added

Trivia

 * The way Rion rises again with a body made of bones and grave soil is the same way the spiritless Kikyō did when she was forced to return to life.
 * Setsuna's ability to sleep finally returns after Sesshōmaru cuts the Dream Butterfly with Tenseiga. However, as a result, the silver-scale curse cast upon Rin by Zero starts up again.
 * Towa has been shown to know how to play the flute, which transforms into the almighty Zanseiken, the opposing demonic, stellar sword that is equal to the one wielded by Kirinmaru, the Bakuseiken, which he had used to destroy the Grim Comet's fragment with his incredibly strong Blasting Barrage attack and had fought Beast King Tōga of the West, and eventually the Half-Demon Princesses with several times.
 * Sesshōmaru speaks to his half-niece and calls her by her name for the very first time; mentioning whether she had seen Inuyasha, his younger half-brother and her father, as well. He does not answer her question as to how he knows of her half dog-demon father's imprisonment in the Demon Graveyard.
 * The between Kirinmaru and his daughter Rion is shown to have been connected by several threads; whereas Towa and Setsuna's young human mother Rin's is linked to Zero by just one.
 * This marks the first time Towa announces the name of her attack.

Error

 * Among the places Kirinmaru and Rion flew above is which, however, should not have been there back then as it was built during the 17th century.