In preparation for the making of Golden Kamuy, Noda Satoru and his editor-in-charge Ookuma Hakkou consulted various people and organizations. Among the people they consulted, Satou Yukio, then secretary-general of the Ainu Association of Hokkaido, and Ootani Youichi, an Ainu researcher from Hokkaido Museum, referred them to Chiba University’s Nakagawa Hiroshi. They both thought Nakagawa would be the most suitable supervisor for the upcoming work. Noda and Ookuma thus visited Nakagawa, handing him the draft for chapters 1 & 2. It would not be the first time Nakagawa doing checking for novels and other books, but what he saw in Noda’s draft astonished him so that instead of being asked, he asked to be involved in the making of the series.