by Mariko Hayashi which was first released in serial format starting February 2016 in the literature magazine Hon no Tabibito, and published as a book by Kadokawa Shoten the year after.

Ryohei Suzuki was announced to portray the lead role of Saigō Takamori in Segodon on November 2, 2016.

[5] The main cast for the Saigo and Okuba family were announced on March 27, 2017, which includes Eita, Haru Kuroki, Nanami Sakuraba, Gōta Watabe, Muga Tsukaji, Morio Kazama, Mitsuru Hirata, and Keiko Matsuzaka.

[6] The main cast for the Shimazu family was announced on June 27, 2017, which includes Munetaka Aoki, Naho Toda, Yu Tokui, and Ken Watanabe.

By November 2017, Etsuko Ichihara also had to drop out as narrator of the series due to her ongoing recovery from encephalomyelitis,[9] and was eventually replaced by Toshiyuki Nishida.