The Japanese inventor Sekai works on a motor that burns water. His son Aun discovers a sea snail, which Sekai uses for experiments that ultimately kill him. 20 years later the Brazilian scientist Euclides, carrying on the experiments, tries to find Aun. His wife Nymphia. led by fairies, finds him serving as a priest in a Shinto shrine. She enters the world Sekai had envisioned. Aun hands Euclides the sea-snail. With his last breath he exhales a substance that makes the world vanish from the universe.