Mishiro is dedicated to her studies and devotes herself to her future... But when she starts to feel the physical discomforts that exam-seekers and serious students experience, such as tired eyes, stiff shoulders, and back pain, she decides to visit a clinic with a good reputation through word of mouth. However, the clinic turns out to be an illegal massage parlor that carefully and thoroughly develops and violates the nipples of immature and underdeveloped female students... Even though it's an illegal act, as she continues to visit the clinic, both Kokoro and body are eroded...