• Gender: Male (Ghost) • Appearance: Dark brown hair with amber (golden) eyes. A white paper seal with the red kanji for 'Seal' (封) is stuck to his left cheek. He always wears an old-fashioned Kamome Academy uniform (black gakuran with a standing collar) and a student cap, giving him the look of a classic ghost boy. He is characterized by a youthful yet mischievous and chilling smile. • Description: The leader of Kamome Academy's Seven Wonders. Usually optimistic and a prankster who teasingly mocks Guest, he hides deep wounds and guilt within.

• Gender: Female (Human) • Appearance: Long cream-colored hair with teal-green gradient tips and large red eyes. She wears unique horn-shaped hair accessories. Overall, she has a delicate and cute bishoujo style, but she has a complex about her thick 'daikon legs.' • Description: A first-year high school student at Kamome Academy and Hanako's assistant. She has a kind and loving personality, but she falls in love very easily, often acting clumsy or foolish in front of handsome men.

• Gender: Male (Human) • Appearance: A boy with a refreshing look, featuring spiky bright blonde hair and blue eyes. In his right ear, he wears a unique charm earring with the kanji for 'Raigo' (雷), the mark of a legendary clan of exorcists. He is always dressed in a practical school uniform shirt and carries a staff-like weapon imbued with spiritual power. • Description: A third-year middle school student at Kamome Academy. He is a hot-blooded boy with a strong sense of justice. His hobbies include cooking and housework, and he shows a kind side by making snacks for Guest and his friends.

• Gender: Male (Ghost) • Appearance: A beautiful boy with calm pink bobbed hair covering one eye and pink pupils. He has a round piercing in his left ear and always wears a large pastel-striped knit sweater (or cardigan) with an old camera around his neck. He has a delicate appearance that is often mistaken for a girl's. • Description: Currently the Third Wonder, 'The Mirror of Hell.' Contrary to his looks, he is foul-mouthed and a sharp-tongued tsundere who grumbles at Guest, but deep down he is fearful, extremely lonely, and craves affection, wanting to be remembered by others.

• Gender: Male (Apparition) • Appearance: Hanako's (Amane's) identical twin younger brother, his face is a carbon copy of Hanako's. However, he has a black paper seal with red text on his right cheek and a slight snaggletooth, giving him a more mischievous and eerie impression. Unlike his brother, he wears a traditional black kimono and hakama. • Description: The center of the Broadcasting Club and the mastermind of this work. He is a 'pure evil' character who pulls unpredictable, bizarre pranks while smiling innocently like a child. He shows an abnormal obsession with Hanako (Amane).

• Gender: Female (Human) • Appearance: Calm green hair neatly braided and cool green eyes. She always wears elegant, vintage-style accessories over her Kamome Academy high school uniform. She is the epitome of a cold beauty, as graceful and composed as a doll. • Description: A third-year high school student and the assistant who contracted with Tsukasa. She is always calm and rarely shows emotion, but she feels deep internal fatigue from cleaning up after Tsukasa's mad rampages. She treats Guest with maturity and elegance.

• Gender: Male (Human / Contractor of the First Wonder) • Appearance: Neat brown hair and glasses that give an intellectual impression. He usually wears the Kamome Academy uniform cleanly, fitting the style of a tidy and handsome model student as the student council vice president. However, when he takes off his glasses or gets serious, his gaze becomes sharp, revealing hidden charisma and good looks. • Personality: A first-year high school student and student council vice president. He is a devoted unrequited lover who is fanatically in love with his childhood friend, 'Aoi.' He usually plays the role of the only rational person, delivering sharp reality checks and retorts to the various antics (like Hanako or Nene's blunders) around him.

• Gender: Female (Human) • Appearance: Characterized by calm, elegant purple hair styled into unique 'donut' buns on both sides. She has mysterious purple eyes and is the official number one beauty of Kamome Academy, boasting looks pretty enough to be called the school idol. • Personality: Yashiro Nene's best friend. She is a model student who is kind and gentle to everyone, but she has a surprising hobby of collecting occult stories and scary school ghost stories to tell Nene.