IQQQ-020 A married female teacher, Reina Nanjo, gets ten times wetter in a lesson where she can't scream.

During class, Reina (Minajo Reina) suddenly found herself being caressed by her student, torn between anxiety and pleasure. While Reina played the role of a strict teacher at school, she secretly enjoyed her life indulging in affairs with her students. However, her student's desires escalated to the point where he started playing tricks even during class. If caught, she would lose both her family and teaching career. Although Reina understood this, she couldn't stop her body from heating up due to her student's caresses. Reina herself was also captivated by the thrill and taboo.