Tall and graceful, yet exuding a maternal charm, teacher Sayuri was deeply respected by her students. Her teaching style focused on personalized instruction tailored to each student's individuality, a method that drew strange looks from her fellow staff members. This eventually led to interpersonal conflicts and the spread of misunderstandings. One day, after being reprimanded by the grade supervisor for staying late to tutor students, Sayuri found herself during an after-school remedial session suddenly aware of the distinct masculine scent rising from a student's collar. Noticing his mature build and developed hips—far beyond that of an ordinary boy—and accidentally brushing her hand against the student's nipple, she was struck by his intensely sensitive, almost animal-like reaction. In that moment, long-suppressed emotions surged within her, triggering a profound transformation in her heart.