TM Network
The film, directed by Junichi Sato of "Sailor Moon" fame and shown in small chunks on Japanese TV before being released theatrically, was based on a story by singer-songwriter Naoto Kine, a member of TM Network. He also performed the film's opening song and acted in the film as Shintaro, Hiromi's father. The late Kazuo Komatsubara also worked on the film as a character designer and animation director. It won Best Animation Film at the 1995 Mainichi Film Awards.