The story takes place in 1932 when a mysterious meteorite crashes in Manchuria, revealing a strange material that produces unknown energy. This energy is later used to power a massive submersible battleship called Ra, built to boost the war effort. A young woman named Annette tries to stop the Ra's launch, warning that the material was sent by subterranean humans to test the surface dwellers' right to live.
Super Atragon
The 1932 meteorite crash in Manchuria sparks a Japanese Army investigation, leading to the discovery of a mysterious mineral emitting a novel form of energy. This energy source is later harnessed during World War II to fuel a colossal technological project.
