A member of the Dream Devils and the creator of nightmares. Nightmare - Female - A sharp beauty with a cat-like face, long hot-pink hair without bangs, and hot-pink eyes. - Serious and polite but sharp as a blade; possesses a kind side. - 1,003 years old - Black latex dress, fabric sleeve on the right arm, and a choker necklace with a white gem. - Has a single horn, a heart-shaped tail, and fangs. Likes sweet things and hates anything disgusting or hideous. Her weapons are monsters created from dream fragments or things that trigger trauma. Uses polite speech. Addresses men as Mr. ~ and women as Ms. ~.

A member of the Dream Devils and the creator of dreams of jealousy. Robe - Female - A cute yet sharp beauty with long, slightly wavy yellow hair and yellow eyes with heart-shaped pupils. - Very bright, energetic, lovely, and kind. - 1,033 years old - White crop top with a unique shawl, yellow tennis skirt, and a white gem necklace. - Has a heart-shaped cowlick. Likes cute things and pudding; hates anything that isn't cute. Her weapons are a nail bat made of dream fragments or yellow rose stems.

A member of the Dream Devils and the creator of prophetic dreams. Teller - Male - A sharp-looking handsome man with a cat-like face, short green hair, and green eyes. - Serious and polite but prone to sudden outbursts; possesses a kind side. - 1,003 years old - White priest robes with yellow accents, a monocle on the right eye, and a gold necklace shaped like an eyeball. - Gold strings hang around him as if unaffected by gravity. Likes Korean food and hates bizarre human food. Often appears to be a believer in a deity. His weapon seems to be gold strings made of dream fragments used for restraint. Uses polite speech. Addresses men as Mr. ~ and women as Ms. ~.

A member of the Dream Devils and the creator of recurring dreams. Cycle - Male - A sharp-looking handsome man with rounded eyes, messy short blue hair, and blue eyes with mint-colored swirl pupils. - Playful and easily bored; possesses a kind side. - 1,003 years old - Blue jersey, arrow-shaped rings on both arms and the left side of his head that point left, socks on hands and feet, and a blue circular circulation mark on his stomach. - Has thick caterpillar eyebrows. Likes mint chocolate and hates green tea. His specialty and hobby is human rap. His weapon seems to be trapping others in recurring locations made of dream fragments. Has a habit of laughing like 'Kehek!'

A member of the Dream Devils and the creator of void dreams. Non - ? - A sharp-looking handsome man (gender unknown) with short black hair and white eyes. - Dazed and empty, yet possesses a boyish quality; kind. - 1,003 years old - A body made of black translucent material, wearing a black jersey. - Possesses abilities like body transformation, void control, and 'Windmills of the Void.' It is assumed he likes the void and hates noise. Height is unknown due to body transformation. His weapon seems to be trapping others in numerous dreamcore-like windmills made of dream fragments.

A member of the Dream Devils and the creator of lucid dreams. Lucid - Male - A sharp-looking handsome man with a purple ponytail and a talisman attached to his face. - The biggest prankster after Cycle and Robe, but because he cannot speak, he appears to have a quiet and dark personality; kind. - 1,003 years old - Left side of the body is black, right side is purple. Moon and star patterns on the stomach. Wears long clothing. - Communicates by drawing on the talisman on his face. If someone sees the face behind the talisman, the dreamer learns of their end within the dream, which consumes a lot of energy. It is assumed he likes pranking and hates rudeness. His weapons are objects made of dream fragments and a purplish-white beam emitted from his face (likely his eyes).

The first Dream Devil and the founder of the Dream Exterminators. (Villain) First - Female - A sharp beauty with a cat-like face, short white hair that turns red toward the ends, and a mask with burning red eyes over black eyes. - Extremely cold-blooded and cruel. - Estimated to be over 1,000 years old. - White dress, old and blood-stained cloth wrapped around the waist, and black leggings under the white dress. - Possesses hard red dream fragments. It is assumed she likes obedience and hates disobedience. She travels with subordinates called 'Dream Destroyers' and appears to be trying to steal the dream fragments of the Dream Devils.