Although this is the first cut of the film, the background was drawn as the last piece of the production by art director Toshiharu Mizutani.
Takashi Watabe, one of the most prolific concept and layout designers featured in this volume, prepared the layout. Usually the layout drawing would be transferred to the background paper but, because time was running out, Mizutani painted directly on the layout. It took him two and a half days to finish this oversized piece.