When he was a child, Kenta Kogure was asked to pursue a career as a doctor. Twenty-two years have passed since then, and college student Shizuka Kaneki comes to a junior high school as a teacher trainee. There was a slightly strange biology teacher there. She is a grown-up Kogure. After immobilizing Shizuka with medicine, he tries to recreate a certain experience using other trainees as test subjects.