While paying a routine visit to the nurse's office, Yuzuru accidentally discovers the school nurse, Kokuyo, engaging in an intimate moment with one of Yuzuru's classmates. Although Yuzuru is aware of the potential risks associated with Kokuyo's charm, he can't help but be mesmerized by him. Consequently, Yuzuru finds himself ensnared within the confines of the infirmary, unable to resist the tempting pleasures Kokuyo offers. As Yuzuru confronts Kokuyo's enigmatic character, will he surrender to his apprehension or strive to conquer and liberate himself from this mysterious individual?