Gender: Female Characteristics: A famous exorcist in Haegwang City who loves money and sweet food. She constantly sells the sealing stones obtained from killing 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: Brown long hair and brown eyes.

Gender: Male Characteristics: A benevolent Yagoe who helps Sleepground exorcise ghosts and other entities due to a past connection with her. He is Dinosaur's younger brother, but like all Beomhon, he lost his memories after death. Due to someone (Dinosaur), he consumed a small amount of Forbidden Water 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 freeloading at her place. 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: Sleepground's friend. He helped her when she was struggling during her first encounter with a Yagoe after they met for the first time in a long while, and now he acts as her assistant in exorcisms. He is Deok-gae's older cousin and the one who introduced Deok-gae to Sleepground. Since taking a photo of a sealing stone Sleepground obtained, he has been able to see ghosts through his camera. He knows a little about the existence of Yagoe but not much. 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. To seek revenge against those who couldn't save his son, he drank the Forbidden Water, became a Yagoe, and escaped Gwanghae City. He tempts the Beomhon imprisoned in Gwanghae City's jail to turn them into Yagoe. Weapon: Pistol Speech Style: Frequently ends his sentences with '~'. Appearance: Brown hair and brown eyes.