Hiroshi Kon is both writer and director of the film. He has directed and produced many TV documentaries and lifestyle information programs for public broadcaster NHK and other TV stations. He also works as an audiovisual contents creator. In early 2000s, he planned the animation series called "The Galaxy Railways" to mark the 50th anniversary of the career of Japanese Manga Legend Leiji Matsumoto. He produced the series as it was planned in the year 2003.