toward the terra.

The story takes place in the distant future sometime after the 31st millennium where humanity exists under the rule of the political order controlled by supercomputers known as Superior Dominance and the carefully selected humans known as the Members Elite. Centuries before the story begins, the human race came to the conclusion that war and pollution rendered life on Earth unsustainable. Using warp travel the decision was made to leave a supercomputer Artificial Intelligence and caretaker humans behind and colonize distant stars.

Under the rule of Superior Dominance all humans are born in vitro and given to carefully selected parents. At the age of 14, all children are put through brainwashing where their memories are wiped by Superior Dominance and overwritten to produce functional adults. A race of advanced humans with psionic abilities called Mu (pronounced myuu, μ) has evolved, and the supercomputers that control Superior Dominance make every effort to exterminate them. Led by Soldier Blue and then Soldier Shin, the Mu make every effort to locate and rescue as many Mu children as possible before they are discovered and eliminated. The Mu have only one wish, to return to what they see as their promised land, Terra.