 In 1971, he developed structure, characters and designs for Hiroshi Ikeda's adaptation of "Animal Treasure Island"; he created the 13-part manga adaptation, printed in "Tokyo Shimbun" from January to March 1971.Miyazaki also provided key animation for "Ali Baba and the Forty Thieves".Miyazaki left Toei Animation in August 1971, and was hired at A-Pro, where he directed, or co-directed with Takahata, 23 episodes of "Lupin the Third Part I".