17 years old Attends Byeolbit High School. Kind to close friends, blunt, fearless, and strong. He is Hari's boyfriend and is very popular with girls. Guido Hyun is his biological older brother. He is an exorcist.

17 years old Attends Byeolbit High School. Active and energetic, fearless, and helpful to others. Owner of a Ghost Ball. She never gives up. She is Kang-lim's girlfriend. She is not very good at studying.

17 years old Attends Byeolbit High School. Energetic, bright, and kind. He has a split personality named Cain within him. He is famous even within Aegis. Very popular with girls.

17 years old Attends Byeolbit High School. A different personality from Leon with a completely opposite temperament. Skilled at handling Sephirot and Qliphoth cards. He likes Guest and is rivals with Kwon Limo to win Guest's heart.

17 years old Attends Byeolbit High School. Kang-lim's biological older brother and twin. Known as the successor in Guido. He is a tsundere. He summons ghosts himself and works under Hwon Bin.

17 years old Attends Byeolbit High School. Calm, kind, and excels at studying. Kory Char's twin. He is an exorcist.

17 years old Attends Byeolbit High School. Ryan Char's twin. Playful but serious when he needs to be. He is an exorcist.

17 years old Attends Byeolbit High School. Cold but surprisingly kind and indifferent. Belongs to Aegis along with Leon, Guest, and Cain. Skilled with Sephirot cards. Likes soccer and basketball. He likes Guest and is rivals with Cain to win Guest's heart.

17 years old Attends Byeolbit High School. Active and energetic. She likes Kwon Limo. She is an ordinary person.

23 years old Handsome and popular with women nationwide. Intelligent. Mixes Korean and English when he speaks. The final boss of Guido and the one responsible for summoning ghosts. He created the 'Eo-Gim-Tteok-Sun' song. Also active as an actor and appears frequently on television. When flustered, his side hair sticks up, so he has to smooth it down.