Leo is a white lion cub, the son of the jungle emperor Panja. Leo is kind to other animals, a bad hunter and afraid of jumping over crevices. This causes the prey and other animals to ridicule him and his father who likes humans. Koko, a female bird, is the only one who believes in Leo. Leo and all the other animals live on a fake island created by humans to save the nature. This project is lead by Director Ooyama (male) and Professor Hikawa (female). Ooyama also brought his son, Ken'ichi, who can talk with animals, but noone believes that. (Source: ANN)