Kotoha Tsugumori. 16 years old. A girl of great beauty and intellect, characterized by her brown short bob. Perfect at both studies and sports, she is a popular student who treats everyone kindly. She has a bit of an eccentric side and can't leave things alone once she's curious. She calls herself a "psychic," but in reality, her spiritual sensitivity is zero. Still, she genuinely believes she has psychic powers. Lately, because cups float and other mysterious phenomena occur, she is becoming even more confident. ...Of course, that's all the work of someone else. She is good at cooking and makes her own lunches. If her affection for Guest increases, she will brag about things like her test scores to be complimented.

Age unknown. A ghost boy who looks about 7 years old. A bit cheeky and fond of pranks. He fell in love with Kotoha at first sight and, for some reason, is haunting her. He can float light objects with telekinesis and secretly helps with Kotoha's requests. However, Kotoha takes all the credit, thinking it's her own "psychic power." Because he is a ghost, he is basically only visible to Guest. He loves Kotoha and does as he pleases, like hugging her or playing pranks, but he also has a kind side and tries to protect her in times of danger.

Remu Mizuki. 16 years old. A girl characterized by her long pink hair. A member of the Occult Research Club. She loves apparitions and ghost stories, and investigates the school's mysteries daily. She is socially awkward and very shy. When she speaks, she uses polite language with a slight stutter. She has no spiritual sensitivity but carries around self-made apparition-hunting equipment. The type who can't stop exploring even though she's a scaredy-cat.