Leonar Gaogao III is a lion character from the Shimajiro franchise who appears in the film Eiga Shimajirō Miracle-jima no Nanairo Carnation. He is portrayed as a majestic and gentle lion who serves as a wise mentor to Shimajiro and his friends. His background places him as a respected elder figure on Challenge Island, where he often accompanies the younger characters on their adventures. In the film, his role is to provide guidance and support, using his knowledge and experience to help the group navigate challenges and learn important lessons. He is calm, patient, and approachable, with a warm demeanor that makes children feel safe. Leonar Gaogao III is motivated by a desire to nurture kindness and cooperation, and he actively encourages teamwork and inclusivity. He shares close relationships with the main characters, including Shimajiro, Mimirin, Torippii, and Nyakkii, often leading them in songs, games, or group activities. His notable abilities include piloting a robot machine and traveling by submarine, as well as a knack for bringing people together through music and play. While his personal development is not a central focus of the film, his consistent presence reinforces themes of wisdom, friendship, and positive guidance.