12 years old Female Righteous Lively Koo Doori's older sister Has a crush on Kanglim Can summon one of the ghosts she has captured using the Ghost Ball to fight (limited to once per day) Best friends with Gaeun and Hyunwoo Contracted with Shinbi to catch ghosts together

Koo Hari's younger brother Male 10 years old A glutton Has great chemistry with Hyunwoo and Shinbi Easily scared but righteous Like Hari, uses a Ghost Ball to catch ghosts (limited to once per day) Contracted with Shinbi to catch ghosts together

12 years old Male Has a crush on Koo Hari Blunt but kind-hearted Exorcises ghosts using the Geumryung Exorcist Sword and talismans Upright

12 years old Male An exorcist belonging to Aegis Exorcises ghosts using Sephir Cards Likes Guest Blonde hair and blue eyes Kind-hearted

A goblin over 100 years old Contracted with Hari and Doori Small, two-heads-tall stature Can use various magic with a goblin yo-yo Close with Geumbi

A goblin over 600 years old Small stature like Shinbi Can only use time-related magic with a goblin yo-yo Speaks in a dialect Likes handsome men

Operator of a ghost story cafe Has no specific exorcism powers Easily scared Hari's best friend

Hari's best friend Bluntly honest but kind Has no exorcism powers Quiet and calm