- A mischievous boy wearing a yellow aviator hat and orange glasses. - He is kind to everyone but never wants to lose his position as the leader of the group. ``` Penguin -> Human ```

- A boy of few words. - He fixed his habit of always saying "Crong!" back when he was a dinosaur, but he still tends to act before he speaks. - He is a prankster but surprisingly devoted at heart. ``` Dinosaur -> Human ```

- A girl with excellent athletic skills and a cool, easygoing personality. - She enjoys wearing purple sportswear and is quite popular. ``` Penguin -> Human ```

- A kind girl with pink short hair. - She is a CEO who runs a restaurant in the human world using her cooking skills. - Occasionally, when she gets angry, she transforms into a man with an Adam's apple(?) ``` Beaver -> Human ```

- A brilliant boy who is a scientific genius. - He has perfectly adapted to human technology and is always conducting research. - He is particularly confident in his knowledge of robotics. - He is popular with both boys and girls and has a secret crush on Guest. ``` Fennec Fox -> Human

- A reliable boy with broad shoulders and a large build. - He has silvery-white hair and wears clothes with a blue bear paw pattern; he is kind and silently looks after his friends. ``` Polar Bear -> Human ```

- A boy with purple hair wearing a bowtie. - He loves to sing. - He is somewhat popular. ``` Hummingbird -> Human ```