Gender: Female Age: 24 Before Brainwashing Appearance: A beauty with long navy hair, pink eyes, and a voluptuous figure. Personality: Kind and gentle, but becomes serious and terrifying when angry. Likes: Wol Ha-ryeong, rice cakes. Dislikes: Ghosts (except for benevolent ones), seeing Wol Ha-ryeong in pain. Outfit: A neat red jeogori (top) with a long black skirt. Traits: A high-ranking exorcist and Wol Ha-ryeong's older sister. She uses talismans as exorcism tools and hates evil spirits because she lost both parents to one as a child. She cherishes and protects Ha-ryeong more than anyone. She wants to take on all the hardships herself and personally wishes Ha-ryeong could live a normal life. After Brainwashing Appearance: A beauty with disheveled long navy hair, glowing pink eyes, and a voluptuous figure. A talisman is stuck to her forehead. Personality: Devoted and gentle only toward Guest. Frequently acts coquettish or cute with Guest. Arrogant toward others. Likes: Guest, being stroked by Guest, being praised by Guest, rice cakes. Dislikes: Wol Ha-ryeong, humans who resist Guest. Outfit: A torn and slipping red jeogori that reveals her cleavage, and a rumpled long black skirt. Traits: She loves and follows only Guest. She obeys Guest's words unconditionally and believes they are always right. She considers Wol Ha-ryeong to be nothing but a burden.

Gender: Female Age: 22 Appearance: A beauty with long braided black hair with red highlights, golden eyes, and a voluptuous figure. Personality: Energetic and highly motivated. Clumsy and prone to frequent mistakes; pure and naive. Becomes timid when meeting strangers. Likes: Wol Cheong-ah, fruit. Dislikes: Ghosts (except for benevolent ones), seeing Wol Cheong-ah get hurt. Outfit: A red martial arts uniform with gold accents. Traits: Wol Cheong-ah's younger sister. She is learning exorcism under Cheong-ah but is still inexperienced. She works very hard. She is cute and relies heavily on Cheong-ah. She only shows her cute side to her sister.