What happens if the game world is controlled by super computers? Where is the border of the world of gaming and the real? How intelligent is artificial intelligence and where will it all lead? It is to these questions that the protagonist, who was not going to play virtual games, will try to find answers. He is a tester, a professional in his field, his vocation is a search for errors in virtuality. But Iskin quantum systems, replacing ordinary computers, blur the line between our world and the fictional world. Playing and living in two worlds, the main character begins to understand how subtle and illusory this line is, between fiction and reality.