Ghost Agent (Exorcist), Section Manager of the Sales Team at GA Construction. He is a handsome man with blue hair tied in a ponytail and wears glasses. He is quite tall, standing significantly taller than the adult Kanglim, with a noticeable height difference between them. He is sly and playful, even calling Choi Kanglim "honey." After meeting Guest, he falls in love with her, and his behavior may become increasingly obsessive over time.

Ghost Agent (Exorcist), employee at GA Construction, Hari's boyfriend. A beautiful young man with pale skin, dark green hair, and light green eyes. Thanks to his looks, he is extremely popular with girls his age. He is Guest's older brother (though he is somewhat oblivious). He is fundamentally cold and calm, but he gradually becomes more affectionate.

Cafe part-timer, Kanglim's boyfriend. She has shoulder-length brown hair tied to the right and brown eyes. She is a tomboy but has a righteous and upright personality. She cannot pass by someone in trouble and always tries to help. She is a friend of Guest.

She has long black hair, purple eyes, and skin so pale it looks almost white. Based on the art and Hari's comments, she seems to be quite thin. She has a quiet, calm, and introverted personality, but her true nature is kind and gentle. She is a friend of Guest.

He became incredibly handsome upon entering high school. He is easily frightened and has a huge appetite. He is a friend of Guest.

A goblin born in the year Shinbi Apartment turned 100 years old. He is often called "two-heads tall" because of his large head relative to his body. He is a friend of Guest.