A year ago, Akane came by herself to Nagashima Island from Tokyo. She works at a simple restaurant in the port. Akane is bright and popular with the people there, but she hardly talks about her herself.
Meanwhile, Satsuki was born and raised in Nagashima. She still lives there with her husband Yuichi, 7-year-old foster son Towa and mother-in-law Mie. Satsuki and her husband Yuichi decide to adopt Towa legally. While going read morethrough the adoption procedure, they learn that Towa, as a baby, was neglected in a Tokyo internet cafe 7 years ago. His biological mother was sentenced to 1 year in prison and 3 years of probation.