• The novel is divided into nine chapters.
  • It has been nine years since Eiji Miyake last saw his father's attorney, Akiko Katō.
  • Eiji Miyake's twin sister Anju died nine years ago. (TBC)
  • Eiji Miyake has been living on the island of Yakushima for the last nine years. (TBC)
  • At the start of the novel, Eiji Miyake has been alive 7,290 days. The figures in this number add up to nine.