Blank 13 (2018)

Family members learn the whereabouts of the father who vanished without a trace 13 years ago. However, he dies of cancer three months later, leaving Koji and his family members without closure. Koji and his family think they can't reclaim the lost 13 years, but the stories told about their father by mourners at the funeral reveal the truth that was unknown to the family. Based on the true story of Hashimoto Kouji (はしもとこうじ), a TV show writer and screenwriter.