Ten years after her divorce, Mio raised Yuki on her own. Busy raising her child, she had almost no time for herself. It wasn't until Yuki graduated from university that Mio realized how much time had passed. With child-rearing finally behind her, Mio found herself aimless and emotionally empty. To cheer her up, Yuki invited her on a hot spring trip with warm, thoughtful words. On this private graduation journey together, Mio finally had the chance to focus on herself and feel cherished again.