Reiko, a teacher whose marriage has fallen into a long period of stagnation, feels her presence as a woman fading. With no conversation at home and her husband turning his back to her in the bedroom, she feels like a lifeless creature whose only role is that of a 'wife'. Amidst this, her student, Nitta, rapidly improves his grades and begins to trust Reiko more than anyone else. Nitta responds honestly to her words, gazes at her directly, and smiles happily at even the smallest bit of encouragement. His pure yet precarious passion awakens Reiko's existence as a woman once again...