Writer & Producer Yoshiaki Nishimura spent 2.5 years writing back stories of all of the main characters so that the animators & others would have a richer understanding of their motivations and behaviors.
The Imaginary is produced with hand-drawn animation.
The library where all the Imaginaries gather is modeled after the central rotunda of the Stockholm City main library in Stockholm, Sweden.
In Amanda's bedroom there is an Ikea shark plushie called Blåhaj on her bed.
It was originally scheduled to be released between June and August 2022, but it was postponed due to production delays.