The narrative begins in 2047. Mikako is apparently alone in a hauntingly empty city, trying to contact people through her mobile telephone. She wakes up in her Tracer orbiting an extrasolar planet. She then goes to Agartha, the fictional fourth planet of the Sirius Solar System. Mikako sends an e-mail to Noboru (which shows the date 2047-09-16), with the subject "I am here", which would reach him eight years later. Some flashes of imagery, perhaps indicative of memory, a hallucination, or even a mystical encounter, are then shown. The room shown at the beginning of the animation is presented again; Mikako is squatting in the corner, sobbing and pleading with her doppelganger to let her see Noboru again so she can tell him she loves him.