A chronicle of the life of Yasui Santetsu, a 17th century master of go who turned his attention to astronomy and created a new calendar for Japan. Based on the life of Santetsu Yasui (December 27, 1639-November 1, 1715), appointed as the first official astronomer in the Edo Period and would go on to create the Jokyo calendar at the imperial request.
宮﨑あおい
as En Murase
岡田准一
as Santetsu Yasui
中井貴一
as Mitsukuni Mito
佐藤隆太
as Gieki Murase
笹野高史
as Dennai Tatsube
染谷将太
as Tenchi Meisatsu
