Nakai, citing poor health, skips class and quietly spends his time in the nurse's office. This period has become his private moment to indulge in masturbation while gazing at photos of his beloved teacher, Kotomi. One day, by sheer coincidence, Kotomi herself arrives at the nurse's office, discovering Nakai's secret. Overcome with emotion, he loses control and pours out all his pent-up feelings toward her on the spot.