Bombarding his superiors with ideas, he played a key role in developing the film’s style and story line. In 1971, Miyazaki and Takahata left Toei and joined a new animation production company, A-Pro. In 1972, together they made “The Adventure of Panda and Friends (Panda Kopanda)”. In 1973, Miyazaki and Takahata left A-Pro to join Zuiyo Pictures, where they made “Heidi (Alps no Shojo Haiji)”, a Japanese TV cartoon series.