A young child is obsessed with learning about and drawing fish. The child seems a little odd, but if you are understanding and supportive you will be cheering in the end.
Doi of the Maeda Construction Company's Advertising group has little passion for his work. One day the group's leader Asagawa declares, "Let's build the hangar for Mazinger Z!" Having been dragged in by Asagawa, Doi and his co-workers commence putting on appearances of having taken on this request from a fantasy world.