A humanoid robot is asked to replace Hal, who was killed in a terrible accident, in order help Hal's girlfriend move on in life, but struggles to understand the real Hal's past and the meaning of being alive.

The story takes place in a technologically advanced society in which robots can be programmed to behave like a complete human. A robot is asked to replace Hal, who died in an accident, to help Kurumi, Hal's girlfriend move on in life. "Hal" struggles to understand the real Hal's past, Kurumi's affections towards Hal as well as the meaning of being alive.—Anonymous