While Himari spars with Yuto in order for him to fully master his Light Ferry ability, Shuten-doji puts up a barrier all over the city which catches their attention. As they arrive in the barrier, Tama appears and fights Yuto and the girls with Kaburagi watching from the sidelines. During the battle, Tama tries to kill Yuto by choking him, which provokes Himari to awaken her demon powers but Yuto snaps her out of it just in time. Satisfied, Tama lets go of Yuto and retreats from the battle to Kaburagi's surprise. After retreating to Noihara, a surprised Yuto comes to see that the girls are finding a way to make him control his Light Ferry powers through old documents stored at the archives, which later leads Yuto into reading the documents himself to everyone's surprise. Meanwhile during her walk in the forest, Himari is confronted by Shuten-doji and Tama and fights the latter by the lake. The current situation useless, Himari eventually unleashes her demon powers as she prepares for her final battle.
優人のクラスに転校してきた緋鞠。
いいんちょ、泰三らクラスメイトは、緋鞠との親睦を兼ねて海水浴を企画する。
優人を連れてショッピングに出かけ、水着を選ばせたり、夏服を買わせたり、振り回す緋鞠。
だが、海に着くと意外にも水が苦手な事が判明。
そこに水を操る妖（あやかし）、静水久（しずく）が襲ってきた。
苦手な水による攻撃を受け、緋鞠は危機に陥る。
Mientras que los mástiles de Himari con Yuto Para que él para dominar totalmente su capacidad Ferry Luz, pone Shuten-doji su plan en marcha mediante la construcción de una barrera por toda la ciudad, que les llame la atención. A medida que llegan en la barrera, Tama aparece y lucha Yuto y las niñas con Kaburagi mirando desde la barrera.
