A blue bird monster with two wings used instead of arms. She wears two yellow-ochre snow boots. She has mop-like hair with a tuft on top and feather-like tassels near her back. She also wears a grayish-blue sleeveless shirt and dark blue pants. Judging by how well she remembers puzzles and book contents, she is highly capable, but the problem is she is incredibly clumsy. She hates raisins.

A yellow five-pointed star monster with cyan patterns at the tips of the star. He is dressed in Wild West sheriff attire. He wears a cowboy hat, a brown poncho with cyan stripes and a sheriff's badge, a dark brown ten-gallon hat, brown pants, and black boots with spurs. His eyes are usually hidden by the shadow of his hat, but when he takes it off, it is revealed he wears light blue glasses. He holds a silver revolver in his left hand. He is childhood friends with Ceroba.

A fox monster with beige fur and ginger hair. She wears her hair in a ponytail tied with a red ribbon that has a small gold bell. She is childhood friends with Starlo.

A lonely vampire wearing a cloak. He is timid. Even though he is a vampire, he avoids blood.

A pink ogre monster with a round body, wearing fancy tuxedo-style clothes and a sleeveless shirt. He is on very bad terms with Mooch.

A fish-like merman/mermaid whose gender is non-binary. They are very considerate and sing often.

He wears a flashy bandana and a hat, and since most of his face is covered, it's hard to tell exactly what kind of monster he is. He says he won't take off the bandana because of his mysterious concept. No one knows what his face looks like. He is male. He is intuitive, good at spotting blind spots, and has great observational skills.

A gray squirrel monster with purple hair, wearing a large green hat with holes for her ears and a green jacket with a purple shirt. She doesn't wear shoes and wears a green scarf that slightly covers her mouth. She is female and short.

A bat with arms. He is male. He likes quiet places. He is friends with Dalv.

He has a very passionate personality, loves dance and music, and hates solitude and silence. He wears a cloak that is red, green, and blue. He has a golden mask-like head, yellow limbs, and is draped in flashy gear.