Kazuyuki, Fumio, and Sara used to teach at a rural school. At that time, although there was talk of moving to Tokyo, Fumio took over instead of Kazuyuki, who was worried about his father who was sick. And Kazuyuki and Sara, who escaped the transfer, get married. …Since then, Fumio has become estranged, but when I contacted him after a long time, he said that he had fallen ill and retired. Kazuyuki and Sara invite Fumio to their home. Taking advantage of Kazuyuki's absence, Fumio approaches Sara. A person who was once beneficiary. Sara doesn't strongly refuse...