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

Kyōma and his new partner, Mira, are after the art thief Loser's illegal coils, but what is Loser really after?

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