Azusa divorced 20 years ago and raised Taichi by herself. Taichi graduated from university, joined a magazine editorial production company, and was now at the end of his child-rearing years. However, Taichi's job at the editing production company was extremely black, and he worked from morning till night every day without a day off. Azusa, who was worried about Taichi, forced him to take a day off and took him on a trip to a hot spring, saying that his grandfather had passed away.
