Episode 26 (Hanyō no Yashahime)

Demon Spirit of the Sea is the twenty-sixth episode of Hanyō no Yashahime, and the 2nd episode of the second season titled "The Second Act."

Summary

 * 1) Looking for information on Bokusenō, Setsuna and Moroha seek out a Sea Snake Woman.
 * 2) Towa, worried about Setsuna, rallies the demon slayers to her aid.
 * 3) Setsuna uses the unique abilities of her Yukari no Tachikiri and appeases the snake-demon to return to the seas with her human lover.

Plot
While Setsuna is on a mission to retrieve a mystical Kyuyokon root, Moroha asks Jyūbei about how to find the ancient demon-tree Bokusenō by fining a demon that knows of a demon of such wisdom and mystical demonic abilities. Moroha meets up with Setsuna to find it but end up encountering the snake-demon spirit disguised as a human nun, who desires Setsuna's waist-length hair to appease her intense fury and bitterness at never being able to restore her true form. But when Towa gets wind of where her twin sister and paternal half-first cousin are, she carelessly charges into battle with aid from Hisui and his fellow demon-slayers, with mirrored sunglasses to protect herself from turning into a statue of rock.

It is then that Setsuna realizes that she can put an end to all of this suffering. She utilizes her Yukari no Takichiri's strongest and most useful ability to cut all physical and immaterial things/beings, both seen and unseen, to restore the destiny of the snake-demon and that of her human love, a fisherman. Finally at peace with herself and the humans on the surface, the Snake-Demon manages to regain her true form and returns to her home in the sea. The Half-Demon Princesses leave on Takechiyo, with Riku watching from a distance; glad that Towa is safe and that he awaits their next encounter, in which Towa will be wielding a genuine and fully demon-empowered weapon in the more battles yet to come.

Trivia

 * Setsuna does the narration instead of Towa for this episode. Additionally, we seen her waist-length hair loose again.
 * Mimisenri makes his appearance in the series since the original series' 127th episode, in which he informed Naraku of the unreachable whereabouts of the "final" fragment of the Sacred Jewel of Foul Souls.
 * The Demon-Snake Spirit evil form resembles the Greek character, along with the autonomous snakes as her hair. She even turns anyone, who looks into her eyes, into statues of stone.
 * The location of one of the Rainbow Pearls is as follows;
 * The Blue Pearl is in the eastern forest.