Gilbert Gosseyn awakens from a state of suspended animation to find himself a prisoner on a strange spaceship.

In this sequel to World of Null-A, Gilbert Gosseyn must learn to use both his brains and function in various bodies in order to save the universe from Enro the Red.

It is the year 2650 and Earth has become a world of non-Aristotelianism, or Null-A. This is the story of Gilbert Gosseyn, who lives in that future world where the Games Machine, made up of twenty-five thousand electronic brains, sets the course of people's lives. Gosseyn isn't even sure of his own identity, but realizes he has some remarkable abilities and sets out to use them to discover who has made him a pawn in an interstellar plot.