Yuko raised Taiichi all by herself. Not wanting to make him feel pitiful, she worked tirelessly. Before she knew it, Taiichi had graduated from university and secured a job in the printing industry. With child-rearing finally coming to an end, Yuko felt an empty void in her heart. What should she live for now?... Just as she was feeling lonely, Taiichi invited her on a hot spring trip…
