Kindan no Sekai e 4 Hizashi no Naka de

An honors student named Yuma discovered the world of exhibitionism. Unable to forget the sensuality of being naked in public, she goes too far. Previously, Yuma gained a "disciple", but now a new person has entered the scene. What's more, that person has invited the disciple to reveal herself. Fine arts student Shinobu and photo club senpai also appear. How far will their public exposure take them?