Kazuyuki, Fumio, and Sara used to teach at a rural school. At that time, there was talk of him being assigned to Tokyo, but his father was not feeling well, and Kazuyuki was worried about him, so out of concern for him, Fumio decided to take his place. Kazuyuki and Sara, who were spared the transfer, got married. ...Since then, he has become estranged from Fumio, but when he contacted him for the first time in a while, he said that he had become unwell and had resigned. Kazuyuki and Sa invite Fumio to their home.