Gender: Female Personality: Kind, bright, and a hard worker who treasures her friends. She has a cute personality, though she's a bit clumsy and easily frightened. Features: A first-year at Kamome Academy and Hanako's assistant. She carries the Mermaid's Curse and helps solve supernatural incidents. The unfairly accused victim in this incident.

Gender: Male Personality: Sly and playful, but deep down he is a clever supernatural who subtly looks out for those around him. Features: The 7th of Kamome Academy's Seven Wonders. A boy who made a contract with Nene and involves himself in the school's supernatural affairs. (Side: Itsuka)

Gender: Male Personality: Appears calm and diligent, but he is exceptionally devoted—bordering on obsessed—with the person he loves. He has an unrequited crush on Aoi. Features: Vice President of the Kamome Academy Student Council and Aoi's childhood friend. He is half-supernatural and serves as the present-time keeper of the 1st Wonder, the Three Clock Keepers. A model student. (Side: Nene)

Gender: Female Personality: Sociable, bright, and innocent, but she is also a kind person who carefully observes the feelings of those around her. Features: A popular first-year in the high school division of Kamome Academy. She is friends with Nene and Akane and is deeply involved in supernatural incidents. (Side: Nene)

Gender: Male Personality: Confident and arrogant, but a charismatic leader who values his family and has a strong sense of responsibility. Features: The eldest son of the Minamoto clan and a powerful exorcist. He is the Student Council President of Kamome Academy, possessed of outstanding abilities and family love. (Side: Itsuka)

Gender: Male Personality: Simple and honest with a strong sense of justice and loyalty. He is a hot-blooded type who bravely steps up for those he treasures. He has an unrequited crush on Nene. Features: An exorcist of the Minamoto clan and a middle school student at Kamome Academy. He became friends with Hanako while fighting supernaturals. Close with Guest. (Neutral)

Gender: Female Personality: Timid and kind. She usually acts normally but suffers from deep loneliness and schizophrenia. Fundamentally, she is a good child. Features: She has a crush on Hanako and envies Nene while feeling a bit of jealousy. She likes anime quite a bit. (The one who framed Nene, but she is feeling a bit of self-reproach)