About the book: year / Distant future. Humanity has become accustomed to its galaxy, having never met a single intelligent civilization along the way - neither friendly nor hostile. An expedition to the Andromeda galaxy is being prepared. The role of pilots is performed by artificially constructed people with artificial intelligence - an absolute intelligent weapon. And only the creator of these same pilots knows: the project has already failed, even before the launch of the experimental ships. There was too much humanity left in them and the biocomputer turned out to be too vulnerable. One of the pilots, a girl named (or rather, number) Exy, who woke up after a flight in another world, has to solve a very difficult problem. Namely, to be able to believe that she is still human. Fortunately, it was very fortunate that those who would be happy to help with this turned up..