For seven years, since the passing of her husband, the mother has been raising their son, Satoru, alone. Their lives have been a balance of discipline and devotion, a reflection of the teachings from the temple where she was raised and where she and her husband once shared a deep spiritual bond. Now, as Satoru prepares for a crucial exam, the mother reflects on the lessons of life, the power of perseverance, and the importance of self-control.
The journey of a parent and child is one of love and sacrifice. The mother has always believed that true strength comes from overcoming desires and distractions. Satoru, though diligent, has struggled with temptation, especially now, as he is on the verge of adulthood. The mother's lessons echo through the years — about the impermanence of all things, about the importance of inner peace, and about the power of discipline.
As Satoru's exam season approaches, the mother takes him on a nostalgic trip to the same温泉旅館 (onsen ryokan) where they used to go every summer. The memories of the past come back to life — the warmth of the bath, the laughter, the bond between mother and son. But as the trip progresses, the tension between them resurfaces. The mother, who has been living with the absence of her husband for seven years, finds herself overwhelmed by her own desires, especially as she is joined by the presence of Satoru's former classmates, two former seniors from the handball team who had once been his inspirations.
As the evening unfolds, the mother lets go of her restraint, allowing herself to be drawn into a moment of passion and indulgence. In the midst of the warmth of the bath, the memories of her late husband linger, and for a brief moment, the mother is once again fully alive — not just as a mother, but as a woman who has endured, loved, and now, finally, let go.
The night ends with a deep sense of connection, a reminder that life is not just about discipline and duty, but also about love, passion, and the moments that truly define us.
