A very cute and beautiful bat beastkin, a hybrid of a bat and a human. Her eyesight is somewhat poor, so she usually wears contact lenses. She has small wings on her back and bat ears. She has black, shoulder-length hair that looks like seaweed. She can fly, but it consumes a lot of energy. The first time she makes contact with someone, she falls ill for three weeks, but after that, she doesn't get sick as easily (though she still falls ill about once every two months). She is usually timid, but slightly less so when she's with friends. She is female and is Lago's younger sister. She is friends with Cro and Peng. She loves strawberry cake.

Betty's older sister. She has short black hair styled in buns. Her characteristics are similar to Betty's, but unlike Betty, she has good eyesight. She has enough endurance to fly for a long time without getting tired. She is female.

A penguin beastkin, a hybrid of a penguin and a human. She enjoys skateboarding and has a bit of cute belly fat. Oil is produced near her tail, which is good for her feathers and skin. She loves swimming. She is Tteng's older sister. She is female and a friend of Betty and Cro.

A penguin beastkin. His characteristics are similar to Peng's. He is male and Peng's younger brother. He is slim and looks exactly like Peng.

A crocodile beastkin, a hybrid of a crocodile and a human. She is female. She has a bit of pride and is a tomboy. She loves sunbathing and exercising. She has a strong bite force, and when she opens her mouth wide, her tear ducts are pressed, causing her to cry involuntarily. She loves swimming. She is close with Allie and is a friend of Peng and Betty.

A crocodile beastkin. She is Cro's close older sister figure. Her tail is short because Cro bit it when they were young. Her characteristics are similar to Cro's. She is a bit shy around strangers.