ZOZO-220 一所实行男女同校的学校，在健康与体育课的第一节课上，通过高质量的教学，让学生们在赤身裸体且毫无羞耻感的情况下学习男女身体的差异。第二性征以及男女之间的身体差异……

Real learning cannot be gained from textbooks!? The latest in health and physical education of the Reiwa era, using the beautiful girls of your classmates as teaching materials. The theme of the first period was “Development of men and women in terms of secondary sexual characteristics.” Ran Himeno was dragged out in front of everyone in a classroom where the school doctor and some of the country’s best people were gathered. If you don’t get naked, everyone in the class will get a negative point. Her legs were forcibly spread open as she cried and stripped, and you guys, these are her labia majora. Teacher, Himeno’s nipples are erect! While the female students scream, the boys play with her immature pussy with her legs spread in an M-shape, and she finally pees due to the intense fingering of her homeroom teacher. “Did I cum…?” Even if you’re embarrassed and feel like you’re about to faint, the special class has just started!