The Relative Worlds
In October 2018, Craftar revealed that a film adaptation titled would be released. The film premiered on January 25, 2019. The film follows a slightly altered plot, with the staff and most of the main cast of the ONA returning to reprise their roles. Plot. Sōtai Sekai. The story is set in Japan year 2020. Focuses on Shin Hazama, a third-year high school student who just lost his father. He encounters a version of himself who has spent a different life in another Japan, Jin. That's when he knew that the everyday life he has  starts to crack, and battle between another world and another self begins. Ashita Sekai. The film centers on Shin and Kotori, who are both third years in high school. Shin lost his mother when he was little, and since then he has a tendency to close himself off. Kotori is his childhood friend who always looks out for him. One day, another "self" from another Japan appears in front of them. Production. Hakuhodo's animation studio, Craftar, planned and produced the series, while Yūhei Sakuragi directed and wrote the screenplay. Hidehiro Kawai composed the music. PALOW. did the character design  while Rui Tomono did the concept art. Craftar and Lucky Pictures collaborated on CGI production, where they used the Unity game engine for rendering as well as crowd shots. Three-member unit Reol performed both the opening and ending theme, titled "VIP KID" and , respectively. Singer Aimyon performed the film's theme song, as well as the insert song "Ra, no Hanashi". This marked her debut contributing work for an anime. Release. The film adpation of "The Relative Worlds" was screened in competition during the 2019 Annecy International Animated Film Festival. The film premiered in the UK at Scotland Loves  Animation 2019.