Mai-Otome

Season 2

Episode 3: Zwei - The Striped Dance / Labyrinth of the Maiden "Shima no Mai/Otome no Meikyū" (縞の舞/乙女の迷宮)

Nao and Nina are investigating some hidden ruins that may hold the key to ending the current crisis. There they discover a book of importance. However the shadow entity is intent on stopping them at all costs and preventing the book from leaving the place