Yumi was born into a farming family that had been in business for generations. Her son, Hiroaki, graduated from an agricultural school and worked on the farm with Yumi in place of his elderly grandfather. Hiroaki inherited the farmland, leaving a will saying, "Please take care of the farmland and my mother." Hiroaki inherited the farmland, partly because his grandfather asked him to, but he had also fallen in love with Yumi. Hiroaki took this opportunity to confess his feelings to Yumi by inviting her on a hot spring trip. Under the pretext of celebrating Yumi's birthday and rejuvenating her daily life...