Keiichi and Hiroko, who had grown attached to the house they were renting under a time-limited agreement, wish to continue living there. They consult the landlord, Mr. Kimura, who presents them with new conditions—revealed to be his son. When the son arrives next, he offers to let them stay on one condition: Hiroko must engage in a physical relationship with him. Having only ever known her husband as a man, how will Hiroko respond to this demand? A deeply moving story exploring the nature of family and the complexities of human relationships.