Kyōma Mabuchi, a Collector, runs into some trouble on a job and ends up bringing back an android girl named Mira.

Mira is trapped in the past as Kyōma and the others fight against the ghosts in the fog attacking the hotel.

Kyōma recalls his past as he gets ready to join the other Collectors on Easter Island.

Mira helps Kyōma put the pieces of his memories back together as they all fight to bring down Seameyer together.