Tooru, Kenji's friend and an amateur photographer, was looking for a model. One day, he becomes interested in Kenji's mother and asks her to pose for him. To his surprise, she gladly agrees. While Kenji is out of the house, Tooru uses the modeling pretext to make increasingly explicit demands. When Kenji returns home from shopping, he witnesses the scene and confronts his mother, demanding, "What were you doing with Tooru?" She responds, "It's wrong, isn't it?"—yet her body betrays her, reacting intensely and uncontrollably.