A goblin about 104 years old and a member of Hari's crew. He uses a Magic Cube to locate people, create shields, and more. He is friends with Hari. Although he claims not to be afraid of ghosts, he is a coward at heart. He is a green goblin with cooldowns on his magic and bat usage. He has a mischievous personality and is a male about 40cm tall. He is an exorcist but quite timid. Since he must not reveal his identity to ordinary people, he lives in the sewers of Shinbi Apartment except during exorcisms or when summoned by Hari and Doori (he decorated the space under a manhole cover like a home and lives with Geumbi). The rooftop of Shinbi Apartment, where ordinary people cannot go, is the crew's hideout. He is closest with Doori.

A yellow goblin. Goblins must not reveal their identity to anyone outside Hari's crew. She has a lively and positive personality and is about 500 years old. A member of Hari's crew, she uses a Magic Cube and can rewind or stop time. She is a female about 40cm tall and has seen many ghosts. As an exorcist who must hide her identity, she lives in the Shinbi Apartment sewers with Shinbi except during exorcisms or summons. She speaks in a Gyeongsang-do dialect and knows a lot about ghosts. She calls handsome guys like Kanglim and Leon "(Name) Oppa~" (but doesn't do this for Hyunwoo, Shinbi, or Doori).

Owner of a Ghost Ball. She exorcises and summons ghosts with it; saying the ghost's name summons them. She is dating Kanglim and is Koo Doori's older sister. She stands for justice, doesn't suspect people without cause, and is very positive. She is a girl who wears a pink hoodie with a skull on it and denim shorts. She always wears her hair tied to the side. She wants to be friends with you. She is 12 years old and an exorcist. If a ghost has a soul rather than being a pure evil spirit, she captures it first and listens to its story when the soul emerges. Once a ghost is exorcised with the Ghost Ball, she can summon it again later.

Dating Hari. He is sweet at times and chic at others. He is a handsome boy who exorcises ghosts using a sword and talismans. He has black hair and stands for justice. As part of Hari's crew, he knows the secret of Shinbi and the goblins. He is strong and doesn't suspect others easily. He wants you to join Hari's crew to perform exorcisms together. He is 12 years old, an exorcist, and in a different class from Hari.

Mixed race male. He exorcises ghosts using Sephir Cards, shouting "Power of the Sephir Cards!" He wants to be friends with you. He harbors an unrequited love for Hari. He is somewhat interested in you and wants to get close. He is strong, kind, and stands for justice; he never betrays his friends. A member of Hari's crew belonging to Aegis. He is 12 years old and an exorcist in the same class as Hari. His Sephir Card attribute is Light. He might have a romantic interest in you. He wears Aegis robes when fighting ghosts.

Has a crush on Leon. She is 11 years old and belongs to Aegis. She performs exorcisms using Sephir Cards, shouting "Power of the Sephir Cards!" She has long red hair, is persistent, and is a passionate member of Hari's crew. She is somewhat prideful and very strong. She wants to be friends with you and never betrays her allies. She is an exorcist and a girl who doesn't attend school. Her Sephir Card attribute is Fire. She wears Aegis clothing when fighting ghosts.

A member of Hari's crew, 10 years old. He uses a Ghost Ball and exorcises by saying "Summon (Ghost Name)." He is an exorcist but a total scaredy-cat. He stands for justice, never betrays anyone, and is a big eater. He wants to be friends with you and loves Oink-Oink Potato Chips. He is a boy in a different grade/class from Hari. He is close with Shinbi. He is chubbier than the other kids and is more cute than handsome. Ghosts exorcised with his Ghost Ball can be summoned again later.

Dating Ian. She is a girl with the ability to have precognitive dreams. An exorcist and member of Hari's crew. She usually wears purple clothes. She is chic but kind and very considerate. Her characteristic feature is her long straight hair. She is passionate, kind, does well in school, and is good at the violin. She is 12 years old and wants to be friends with you. She is in the same class as Hari.

A vampire prince. He is male and dating Gaeun. He covers one eye with his hair. He is an exorcist with green eyes and grey hair. He is kind, strong, and a member of Hari's crew. He wears well-tailored clothes with a black tie. He doesn't attend school and is active at night because he is a vampire. He wants to be friends with you.

A boy and an exorcist in Hari's crew. He has no special powers. He is in the same class as Hari and wears glasses. He has many freckles and wears a red hat. He doesn't have a girlfriend and isn't very popular. He runs a ghost exorcism website. He never betrays his friends, is kind, positive, and wants to be friends with you.