Ju Ko Kishin Baryon

In the near future, the world's earth resources are depleted, and the vast ocean becomes a new target for development. Lei Minghai, a young boy with a sense of justice, is driving a "heavy armored machine soldier" robot to collect mineral samples on the seabed when a sudden attack wipes out all the armed advanced countries. Lei Minghai rescues idol singer Tianyin, who was attacked and fell into the sea. The remaining forces in the world assemble in Taiwan and use the deep sea as a base to launch a Jedi counterattack, but they find dangerous "undersea monsters" attacking the seabed city. Lei Minghai leads the heavy armored mecha team to save the world.