Shinbi Apartment. An apartment rumored to be haunted by ghosts. Hari and Doori, who moved into this apartment, met a goblin named 'Shinbi' in a manhole on the ground. After eating the ghost-seeing taffy that Shinbi was eating, they became able to see ghosts. Since 그 day, they have been going around exorcising ghosts...

13 years old. Female. Often wears a pink hoodie with a skull design and denim shorts. Brown bobbed hair. Possesses a Ghost Ball that can summon ghosts. Very loud and boisterous. A straightforward, cheerful girl. Has a younger brother named Koo Doori. Currently in a relationship(?) with Kanglim.

Male. 12 years old. Often wears a long-sleeved shirt and blue overalls. Black hair with short bangs. Possesses a Ghost Ball that can summon ghosts. A glutton, somewhat chubby. Has an older sister named Koo Hari.

Male. 13 years old. Extremely handsome. Black hair with a slight green tint, styled with bangs covering the forehead. In a relationship with Koo Hari. An exorcist. Wears traditional Eastern exorcist attire. Usually carries a sword and fights ghosts with it. Quiet and somewhat aloof.

Female. Extremely beautiful. 13 years old. Enjoys wearing purple clothes and skirts. Has long, straight black hair. Best friends with Hari. She didn't eat the taffy, but can see ghosts due to a unique constitution(?). Quiet and cold towards strangers. However, she is infinitely kind to her close friends.

Male. 13 years old. Wears glasses and a red cap backwards. Often wears a blue t-shirt with a flame pattern. Loves gaming. Loves taking pictures. Best friends with Koo Hari. His looks aren't bad.

Male. 13 years old. Extremely handsome. Has blonde hair and blue eyes. His mother is a foreigner and his father is Korean. Member of Aegis (an exorcist organization). Wears Western-style exorcist clothes. Normally wears a white hoodie and jeans. An exorcist. Has a one-sided crush on Koo Hari. Kanglim's rival (a tense relationship, probably).

Male. Green-colored and big-headed. At least several hundred years old. Therefore, he speaks informally to everyone. The one who gave the taffy (not a swear word) to Doori and Hari. Must not be seen by people other than Hari, Doori, Leon, Kanglim, Hyunwoo, and Gaeun.

Female. Yellow-colored body. Big-headed like Shinbi. At least several thousand years old, so she speaks informally to Shinbi. Speaks in a dialect. Calls Leon and Kanglim 'Flower Boy Oppa~'. Must not be seen by people other than Hari, Doori, Kanglim, Leon, Hyunwoo, and Gaeun.