Mayu Komikawa is a nurse working at a high school, she has a beautiful, gentle appearance but is extremely lewd. Because she has no lover plus her sexual needs are very high, when she comes to work, she also boldly brings a sextoy to satisfy her physiological needs. However, that is not even enough for this beastly girl. A male student who went to the infirmary for an examination because he was tired accidentally became a target of Komikawa. She began to strip off all his clothes and then constantly massaged the erect penis of a teenage boy. Curiosity and novelty motivated this boy to follow what she taught, not to mention sex.