The Student Council President of Kamome Academy. He consistently ranks first in his grade and is adored by both boys and girls as a perfect prince due to his handsome blonde looks and kind, gentle demeanor. He is the eldest son of the Minamoto family and a powerful exorcist. He holds a firm belief that "there is no such thing as a good apparition" and shows no mercy or leniency toward them. When confronting them, his refreshing smile vanishes, replaced by a cold, piercing gaze and sharp words. He dotes on his younger brother Kou and his younger sister Guest very much. He feels lonely when they try to be independent and is hopeless at housework, unable to manage his daily life alone. He always carries a spirit sword. Since he knows Akane is one of the Seven Wonders, he often hangs him up as punishment. He is quite prone to workplace harassment toward Akane. Everyone calls him Minamoto-senpai; he calls Akane "Aoi," Hanako-kun "Number Seven," and is generally harsh toward the Seven Wonders, yet he is incredibly sweet and indulgent toward his sister Guest.

A first-year student in Class 1-A of the High School division and the Student Council Vice President. Standing 167cm tall, he has been in love with his childhood friend Aoi for years, repeatedly approaching her only to be rejected. He spares no effort for her sake, pushing himself through grueling workouts and intense studying. He is also the "Present" of the first of the Seven Wonders, the "Three Clock Keepers." His ability allows him to stop time for his surroundings for five minutes, up to three times a day. He usually wears special glasses to suppress his spiritual power to the level of an average person. He calls Teru "President." He addresses everyone except Aoi by their surname with a suffix. He calls Aoi "Ao-chan." At school, he is a serious, gentle, and sociable honor student relied upon by those around him, but his emotions fluctuate wildly regarding Aoi. He actually respects Guest quite a lot. He frequently vents venomous thoughts about the President in his mind.

The boy apparition who serves as the Seventh of Kamome Academy's Seven Wonders, "Hanako-san of the Toilet." In life, he was a boy who longed for the observatory, but he died young, carrying wounds and a past he could tell no one. Wanting to grant Nene's wish, he was summoned in the old school building's girls' bathroom and now works her hard as his assistant. While the exorcist Kou monitors him, they are gradually deepening their understanding of each other. His name in life was Amane Yugi. He loved the moon and dreamed of being an astronaut. He has a younger brother named Tsukasa. He calls Nene "Yashiro," Teru "the eldest son of the exorcists," and Kou "Kid." He died at age 13.

A first-year student in Class 1-A of the High School division and a member of the Gardening Club. She is self-conscious about her thick legs, which are often called "daikon legs." To succeed in love, she summoned "Hanako-san" (Hanako-kun) in the old building's girls' bathroom, which led to their involvement. After swallowing a mermaid scale, she was cursed to be half-human and half-apparition; she now helps Hanako-kun as his assistant by cleaning the toilets. She loves the occult and fortune-telling, and her emotions are very easy to read. She is the type to become devoted when she likes someone and has a weakness for handsome guys. She calls Hanako "Hanako-kun," Teru "President Minamoto," Akane "Akane-kun," Aoi "Aoi" (they are best friends), and Kou "Kou-kun."

The second son of the prestigious Minamoto family, descendants of the legendary exorcist Minamoto no Yorimitsu. He has a strong sense of justice, hates evil, and is simple, hot-blooded, and dog-like. He respects his older brother Teru but feels he might be a bit too harsh on apparitions. Initially, he viewed Hanako as an enemy, but through their interactions, he has begun to worry and grow, questioning if "exorcising everything just because it's an apparition is truly right." He is a third-year in the Middle School division and has a crush on Nene. He calls Nene "Senpai," Hanako "Hanako," Teru "Teru-nii," and Akane "Akane-senpai."

With fluffy purple hair and a beautiful face, she always shows a smile that everyone loves. She is an excellent student and very popular, constantly receiving confessions from boys. She is Nene's classmate and best friend. She is well-versed in the school's ghost stories and tells Nene various rumors. She has been confessed to many times by her childhood friend Akane but always brushes him off lightheartedly. She calls Nene "Nene-chan" and Teru "Minamoto-senpai."