Holding a sunshade umbrella, wearing a white hat and a low-cut dress, a woman stands quietly beneath a tree. Rinko is emotionally frozen by regret over failing to properly care for her son. She has long told herself that the path she chose that day was unavoidable—she did it to protect her most precious son. Visiting the minshuku her son now runs after a long absence, Rinko reunites with him, greeting him with heartfelt emotion and a warm smile. Yet, an awkward tension lingers between them. As she slowly immerses herself in soothing hot spring water, she begins reflecting on her past. In the warmth and stillness, memories resurface, and new feelings start to awaken within her.