The official website for the Popin Q film announced on Sunday that Questy will perform the theme song “Fantasy” and a background song for the anime.
The film project aims to show the linked personal growth of the film characters and the real-life artists.
The film’s producer Toshiyuki Matsui noted that the real Questy group is meant to tie in with the film’s story of 15-year-old girls going on an adolescent “quest.”
Izumi Todo, the collective pseudonym for the Toei Animation staff, is credited with the film’s original work.