IQQQ-036 In a climax lesson where she can't make a sound, the married teacher Yukoko Shiraki becomes ten times wetter

Yuko was seen as a strict teacher by those around her, but her true nature was that of a woman who loved young men. Behind the scenes, she had relations with her students and enjoyed post-school affairs. However, one day, a student sought further stimulation and even pursued a relationship within the school. Yuko tried to stop him, but her body responded to the student's improved technique, which had been enhanced by her training. She could only barely suppress the sounds from escaping, trying not to be noticed by those around her. In the corner of the school, Yuko silently reached her climax.