Eight years prior to the story, explosions caused by scientists at the foot of Mt. Asama caused a meltdown of Getter Ray energy that spread throughout all of Japan. People throughout the world began to exper...

The future. The people that migrated to an alternate dimensional space, seeking a new world to live in, started an armed rebellion in order to declare independence from Earth. Thus, multi-dimensional war bro...

Ryotaro is a boy who loves robots and lives out in the country with his three sisters but he's headed to Tokyo for high school. Before leaving, he runs across a humanoid military robot and has a fateful enco...