When Chihiro was a baby, she suffered from eczema. Her parents tried to find a cure, but nothing worked. Her father's co-worker then gave him some water from a strange religious group. Chihiro was miraculously cured by the water. Her parents began to follow the strange religion and became fervent followers. Chihiro is now in the 3rd grade of middle school and she faces changes in her life.

After suffering through a long and unsuccessful series of fertility treatments, Satoko and her husband Kiyokazu make the decision to adopt a child. Six years after adopting a boy they named Asato, Satoko has quit her job to concentrate fully on her husband and son. The family lives a peaceful existence until the arrival of a stranger.