The future. Having driven Terra to the brink of environmental collapse, humanity decides to reform itself by ushering in the age of Superior Domination (S.D.), a system of social control in which children are no longer the offspring of parents but progeny of a universal computer. The new social order, however, results in an unexpected byproduct: the Mu, a mutant race with extrasensory powers who are forced in exile by The System.

The saga begins on educational planet Ataraxia, where Jomy Marcus Shin, a brash and unpredictable teenager, is nervously preparing to enter adult society. When his Maturity Check goes wrong, the Mu intervene in the great hope that Jomy, who possesses Mu telepathy and human physical strength, can lead them back home, to Terra...