Jundai Yamada was born in Tokyo. After graduating from university in the United States, he returned to Japan, where he works as an actor in television dramas and film. He became fascinated with Kotsuji Setsuzo’s life story and published a book in Japanese with NHK Press in 2013, entitled “Inochi no Biza wo Tsunaida Otoko – Kotsuji Setsuzo to Yudaya Nanmin” (The Man Who Extended the Visas for Life – Kotsuji Setsuzo and the Jewish ).