Recently, Shion has been feeling unwell for unknown reasons, which has led to him frequently taking time off from university. His usual doctor's visits have not improved his condition, so he decides to go to a hospital he found online. Although he feels uneasy about the examination, in which the doctor places the stethoscope over him in a licking manner, Shion is still worried about his health and decides to undergo a thorough examination. However, what he ends up doing under the guise of an examination is...!!