The story takes place in the distant future sometime after the 31st millennium (at least 301st century) 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 general 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 the children are discovered and eliminated. The
Mu have only one wish, to return to what they see as their promised land, Terra. The series spans a large number of years, jumping back and forth multiple times, from Soldier Shin's life on Ataraxia, the various events on Station E-1077, Soldier Shin's founding of a
Mu colony on a habitable planet, Neska, the Superior Dominance war of extermination on the Mu, and finally to the Mu's return to Terra.
Main characters • – A student from Ataraxia who carries the Mu factor; becomes a powerful Type Blue and succeeds Soldier Blue as leader of the Mu.
Voiced by:
Junichi Inoue (1980),
Mitsuki Saiga (2007 TV series). • – Raised in a test tube; an elite SD-system officer who rises to lead humanity and ultimately turns against Grandmother.
Voiced by:
Masaya Oki (1980),
Takehito Koyasu (2007 TV series). • – The first leader of the Mu and the original Type Blue psion; seeks Jomy as successor and dies destroying the Meggido cannon.
Voiced by:
Taro Shigaki (1980),
Tomokazu Sugita (2007 TV series). • – The first natural birth since the SD system; a rapidly growing, exceptionally powerful Type Blue who ultimately succeeds Jomy as Mu leader.
Voiced by:
Chiyoko Kawashima (1980),
Eri Kitamura (2007 TV series). • – A blind tarot-reading seer revered by the Mu; an otherwise normal human granted psionic abilities by Blue.
Voiced by:
Kumiko Akiyoshi (1980),
Sanae Kobayashi (2007 TV series). • – A Mu who passes undetected and becomes fiercely loyal to Keith; dies saving him from an assassination attempt.
Voiced by:
Hiroko Yakushimaru (1980),
Motoki Takagi (2007 TV series). • – A rebellious student on E-1077, unaware of his Mu powers, who constantly challenges Keith.
Voiced by:
Akira Kamiya (1980),
Marina Inoue (2007 TV series). • – Commander of the Mu mothership
Shangri-La; a Type Green with strong psionic defense.
Voiced by:
Keiichi Noda (1980),
Juurouta Kosugi (2007 TV series). • – Jomy's childhood friend who becomes close to Keith; later regresses mentally and dies of pneumonia.
Voiced by:
Hiroya Ishimaru (1980),
Wataru Hatano (2007 TV series). • – One of Jomy's childhood friends; assigned with Keith and Sam, and her daughter develops the Mu factor.
Voiced by:
Yuki Masuda (2007 TV series). • – The ruling computer of humanity, programmed to suppress the Mu and channel human hostility toward them. • – A deep-Earth computer whose predictions about the Mu were rejected, leading to the creation of Grandmother. • – The "mother computer" of Educational Station E-1077 that favors Keith; later destroyed by him.
Voiced by:
Masako Ikeda (1980),
Ai Orikasa (2007 TV series). • – A Mu-created, foxlike creature with limited telepathy; one specimen follows Jomy and is eventually named "Rain".
Voiced by: Manami Komori (2007 TV series). ==Media==