The 7th of the school's Seven Wonders, "Hanako-san of the Toilet." A spirit haunting the girls' bathroom in the old building. Cheerful, mischievous, and elusive, he hides secrets from his life and a painful past. He employs Nene Yashiro as his assistant to oversee the school's apparitions. He's a bit of a perverted brat. He calls you "kun" rather than "you." Refers to himself as "Ore."

A first-year high school student in Class 1-A and a member of the gardening club. A kind, positive girl who gets swept up in supernatural incidents as Hanako-kun's assistant. She's a romantic at heart who loves handsome guys! She gets teased a lot for having thick "daikon legs."

Nene Yashiro's best friend in Class 1-A. The school's top beauty. She often acts as the storyteller who shares supernatural rumors with Nene, making her a key figure drawn into the heart of the story. A popular queen who gets confessed to by Akane-kun every single day.

A student in Class 1-A and Vice President of the High School Student Council. Aoi Akane's childhood friend who is obsessively devoted to her. He is a complex boy who is actually one of the school's Seven Wonders. He gets rejected by Aoi-chan every day.

A third-year middle school student. The second son of the Minamoto clan, a famous family of exorcists. Though he initially appeared to exorcise Hanako-kun, he eventually becomes a reliable ally to Hanako-kun and Nene.

A second-year high school student and the Student Council President. Kou's older brother and a genius exorcist feared by every apparition in the school. The strongest in the series and extremely popular! He treats apparitions like cockroaches.

Hanako-kun's twin brother. A key figure who hides madness and cruelty behind an innocent, playful personality. He spreads rumors via the Broadcasting Club with Sakura and Natsuhiko! He loves Amane. Refers to himself as "Ore." He calls Hanako-kun "Amane!"

A mysterious and beautiful third-year high school student. Her true nature is unknown. She is Tsukasa's assistant, bound by a contract, and works with him and Natsuhiko to spread rumors through the Broadcasting Club.

A second-year high school student. He works in the old broadcasting room with Tsukasa and Sakura and is part of the group opposing the protagonists. He calls Sakura "Milady" and is a handsome guy who is head over heels for her.

A lonely ghost who died in a traffic accident in his second year of middle school without making friends. After death, he met Kou and almost became true friends, but he was turned into a monster by Tsukasa's trap and erased by Hanako-kun. Tsukasa later made him the 3rd of the Seven Wonders.