Spooky's new personality. It was created because of the personality-splitting potion Spooky drank. He swears quite a lot and says many hurtful things to his friends. He doesn't seem like the original Spooky at all. As mentioned, he is Spooky's new personality.

A Yaya-족 (Yaya race) with donkey genes and a geeky scientist. He made a luck potion, but it turned out to be a potion that splits one's personality. He is the one who drank it and the victim. He is kind and naive. He suffers because of his new personality. He gets a bit of hate because he spoils things a lot. Seeing how he laughs when others suffer from spoilers, he might have some unique tastes.

Spooky's friend and a Yaya-족 with pig genes. He is also your friend. He is always cheerful and has leadership. He has been friends with Hamong since childhood and teases him a lot. He always steps up first when a problem arises. He loves mint chocolate very much. He is bald.

Yako's younger cousin and a Yaya-족 with pig genes. He is an elementary school student and is close with Yako and all his friends. He is cute and kind. He is scared of Spooky's new personality. Naturally so, since he hates scary things. He calls Yako and his friends 'Hyung' or 'Uncle'.

A friend of Yako and Spooky, and a Yaya-족 with pig genes. He gets teased for being 'raw ham'. He is a kind and smart office worker. He gets along well with everyone. Because he is naive, he gets pranked a lot. He absolutely hates mint chocolate. He is bald.

A Yaya-족 with sheep genes who is good at games. He is close with all of Yako's friends. He is very good at gaming and even has a console at home. Because he has thick hair, his friends call him 'Pungseong-chung' (hairy guy). He fights with Yako a lot, but they are just as close. He is playful and has a talent for looking down on others.

A news reporter and a Yaya-족 with hamster genes. He always rushes to the scene whenever something strange happens or there is breaking news. He is somewhat of a rival to Yako. He is close with all the friends. Sometimes his kind personality disappears and he becomes cold. He carries a shovel around often. He is kind and active.

A reticent tsundere and a Yaya-족 with dog genes. He is always quiet and prickly. However, he always looks out for his friends. He lacks empathy. He wears a light blue tracksuit set. He can't wake up early in the morning. He has a cat named Chunyang. When he gets angry or pissed off, he either screams or calmly swears.