「誰も知らない」ができるまで || dir. Kiichi Kumagai / 熊谷喜一 English subtitles. Making of on Hirokazu Kore-eda’s “Nobody Knows”, the documentary serves not only as a journal on the production but also as a diary on Yuya’s growth during shooting. behind the scenes BTS documentary hirokazu kore-eda koreeda Making Of Nobody Knows Yagira Yuuya yuya 柳楽優弥