Kurumi-sensei, who is popular with the students, was actually a former school dropout. In order to overcome this, she started exposing herself around the school with the sole desire to build up her courage... At first, the teacher's confidence grew steadily with the thrill and some small successes, but it was at times like these that she realized she had to let her guard down. As she continued to expose herself and expand her range of activities, she was naturally found by the students, and her excuses were no use. Instead, she felt the students' gazes on her and she became aroused and urinated! She was awakened to a new sexual fetish: the pleasure of shame.