Nakadai commented that he was happy to be able to join this production and said that having been an actor for 60 years, he always felt that he can't compete with the youngsters in terms of freshness so he felt very nervous standing beside Tamaki. It was also revealed that Nakadai had taken on this role because of TV Tokyo's drama producer Tabuchi Toshihiko who had worked with him on a documentary "Neshia no Tabibito" in 1999. At that time, they visited 10 countries over the course of a year which was tough and enjoyable. Nakadai had said to Tabuchi at that time that it would be nice to work together again. Although it took 17 years since then, it was great to be able to get Nakadai to participate in this production.