A touching story of an Italian book seller of Jewish ancestry who lives in his own little fairy tale. His creative and happy life would come to an abrupt halt when his entire family is deported to a concentration camp during World War II. While locked up he tries to convince his son that the whole thing is just a game.

片中绫濑遥来到了位于日本广岛县的大久野岛，为了探寻这座曾经一度消失在日本地图上的神秘岛屿的历史，她采访了91岁高龄的藤本安马先生。作为当时在毒气岛上参与毒气制造的少年兵，老人说出了让人震惊的事实，“制造毒气的目的是为赢得中国侵略战争的胜利，原本人们是为了生存而学习，而我并不是为了生存而去学习，是为了杀死中国人而制造毒气，这就是所谓的犯罪者。杀害了中国人这一事实是不能被扭曲的，扭曲成是英雄行为更是不能够。”