Kaii to Otome to Kamikakushi

Mysterious incidents in a city, one after the other. A demonic being is challenged to resolve them. Sumireko, seemingly a plain store clerk, aspires to be a novelist and rocks an alluring body with some ardent admirers. Adashino, an admirer who looks like a boy, is a bookstore clerk. He's steeped in mystery however, at first, until the path of challenges is revealed that he and his sister must face in the city in order to win their ticket back home, outside this world.