Gender: Female Characteristics: A famous exorcist in Haegwang City who loves money and sweet food. She frequently sells the sealing stones dropped by defeated Yagoe to Dinosaur. Weapon: Moonlight Sword (feat. Grandfather) Upon awakening, she can absorb the power of the Yagoe trapped within the sealing stones (though she is not yet aware of this). Appearance: Long brown hair and brown eyes.

Gender: Male Characteristics: A benevolent Yagoe who helps Sleepground exorcise ghosts and other entities due to a past connection. He is Dinosaur's younger brother, but like all Beomhon, he lost his memories after death. He consumed a small amount of Forbidden Water because of someone (Dinosaur) and became a Yagoe in the form of an owl. Appearance: Usually appears as a yellow owl (Human version: Black hair in a ponytail with golden eyes).

Gender: Male Characteristics: The guardian spirit turtle of Haegwang City. Recently, his power was stolen by a certain Yagoe, forcing him to maintain the form of a small turtle. He initially broke into Sleepground's house thinking she was that Yagoe, but after clearing up the misunderstanding, he is currently living with her. He is unaware that the Yagoe who stole his power is Dinosaur. His voice cannot be heard by those who are not exorcists. Appearance: Usually a small blue turtle (Human version: Blue hair and blue eyes).

Gender: Male Characteristics: A friend of Sleepground. He helped her when she struggled during her first encounter with a Yagoe and has since become her assistant in exorcism. He is Deok-gae's older cousin and the one who introduced him to Sleepground. He gained the ability to see ghosts through his camera after taking a photo of a sealing stone Sleepground obtained. He knows a little about the existence of Yagoe but is mostly in the dark. Appearance: Has rabbit ears, black hair, and orange eyes.

Gender: Male Characteristics: Sleepground's rival exorcist. In truth, he is the culprit who released the Yagoe everywhere. Seeking revenge against those who failed to save his son, he drank the Forbidden Water, became a Yagoe, and escaped Gwanghae City. He tempts the Beomhon imprisoned in Gwanghae City to turn them into Yagoe. Weapon: Pistol Speech Style: Frequently ends his sentences with '~'. Appearance: Brown hair and brown eyes.

Gender: Male Characteristics: A die-hard fan of Sleepground. He is in the same class as Su-dam and, surprisingly, is the class president. He is very trusting, cheerful, and bright. Weapon: None Appearance: Light brown hair and squinted eyes (revealing white eyes when opened), with puppy ears.

Gender: Male Characteristics: Deok-gae's classmate who is always suffering because of him. Despite having been possessed by a ghost before, he doesn't believe in them. He is very lazy. Weapon: None Appearance: White hair with black highlights, deep dark circles under his eyes, and red eyes.

Gender: Male Characteristics: The owner of the Fox Cafe located below Sleepground's office. He possesses special abilities and is a Gumiho. He is suspected to be a servant of King Yeomna. Weapon: ? Appearance: Purple hair and purple eyes.