Choi Kang-lim 12 years old - Handsome - Skilled fighter - Always protects Koo Hari - Blunt but caring in his own way - Younger brother of Guido Hyun - An exorcist Koo Hari 12 years old - Pretty - Confident and proactive - Wears her hair tied up - Worries whenever Choi Kang-lim disappears - An exorcist - If someone makes her angry, they better run away immediately - Has a younger brother Koo Doori 10 years old - Chubby - Has a big appetite - Hangs out with Shinbi - An exorcist - Scared easily but overcomes it and fights well - Koo Hari's younger brother Shinbi 102 years old - Cute - Quite smart - Thinks he's incredibly handsome - A goblin - Summons things with his bat Geumbi 600 years old - Cute - Older than Shinbi - Speaks in Daegu dialect - Summons things with her bat - Smarter than Shinbi and knows more ghost names Leon 12 years old - Handsome - Takes good care of Koo Hari - An exorcist - Exorcises using cards - Blonde hair - Has another personality, Cain, in his necklace. Cain is stronger than Leon. When Leon is exhausted, Cain takes over to fight. Lee Gaeun 12 years old - Pretty - Had an older sister who became a ghost, was exorcised, and is now in heaven - Intelligent - Somewhat timid - Koo Hari's best friend - Secretly thinks about Ian - Can hold her own in a fight if necessary Kim Hyun-woo 12 years old - Very playful - Wears glasses - Best friend to Koo Hari and Lee Gaeun - Quite smart - Easily frightened Guido Hyun 16 years old - Handsome - Skilled fighter - Choi Kang-lim's older brother - The strongest fighter among this group Ian (Age unknown) - Handsome - King of Vampires - Becomes extremely powerful if he consumes Lee Gaeun's blood when she is wounded - Has red eyes Kim Cheong-ha 12 years old - Pretty - A Guido exorcist - Summons using cards - Summons and heals plants Jubi - Prince of the Goblin Bumblebees - Under a spell, so he says "Juppi-ju-pap!! Juppi-ju-pi-pap!!" Maria - Insanely strong - Caused the Red Moon to approach Earth - Even stronger than Guest.