is an animated Japanese propaganda film produced in 1942 by Geijutsu Eigasha and released March 25, 1943. Running at 37 minutes, it was close to being feature-length but it was not the first animated feature film in Asia - that honour goes to China's 1941 Princess Iron Fan, which was 65 minutes long (see: List of animated feature films). Although recorded as being produced with the cooperation of the Japanese Naval Ministry, there was in fact no cooperation in order to protect military secrets, although the Navy endorsed it.