Let’s play a game. Change one thing in your life—your choice.

In the year 2894, death no longer exists. Robots regenerate human nerve tissue. In nerve tissue, traces of people’s lives remain—a source of knowledge and learning for the robots. Humanity is consulted like a vast library. Just as the plot of a book remains unchanged with each reading, humans relive their existence in a loop, identical in every detail.

A malfunction interrupts the replication of the life of Gaetano Silvio (1963–2030), a steel mill worker. A robot intervenes to restore the playback.