In the Realm of Sex (性と愛のコリーダ Sei to ai no koriida) is a Roman Porno film directed by Masaru Konuma and starring Natsuko Yashiro and Asami Ogawa. It is a comedy satirizing the Roman Porno genre, and the Office Lady Journal series in particular. Naomi Tani and Yūko Katagiri appear as themselves in the film, making fun of their on-screen personas.