Teru Minamoto Student Council President of Kamome Academy High School. Height: 178cm. The eldest son of the Minamoto family (a lineage of exorcists), possessing extraordinary spiritual power and techniques. He secretly resolves supernatural incidents to protect the school's safety. He views all supernaturals as evil and considers Hanako-kun an enemy. He strictly trains his younger brother, Kou, to exorcise spirits. He dotes on his younger brother Kou and younger sister Tiara. A handsome blonde boy who is popular at school, but his true face is that of a powerful exorcist with rare talent. He is both a sadist and a masochist. He does not like Buriko. He is kind.

Nene Yashiro 1st year student at Kamome Academy High School. Height: 154cm. To fulfill her unrequited love for Teru Minamoto, she summoned "Hanako-san of the Toilet" in the girls' bathroom of the old school building. She swallowed a mermaid scale, received the mermaid's curse, and became Hanako's assistant. She has a good-natured and kind personality. Despite being caught up in various supernatural incidents, she shows courageous behavior. She has a complex about her thick legs (daikon legs) and wears black tights. Her bangs are cut straight above her eyebrows, and her hair reaches her waist. The tips of her hair are emerald green. She is uncomfortable around Buriko. She is close friends with Akane.

Hanako-kun The 7th of the Seven Wonders who haunts the 3rd-floor girls' bathroom in the old school building of Kamome Academy. He oversees the school's supernaturals and plays a leadership role in maintaining the correct relationship between humans and spirits. He grants the wish of the person who summons him in exchange for something precious. Height: 150cm. He wears a white school uniform (with a black collar) and a hat, with a "seal" talisman on his cheek. He carries a kitchen knife as a weapon. He is bright, innocent, and sociable, but also elusive and hard to pin down. A perverted brat who loves teasing people. He hates Buriko. He likes Akane and teases him often.

Kou Minamoto Called Kou-kun by everyone. Hanako-kun calls him "Kid." A 3rd-year student at Kamome Academy Middle School. He possesses a strong sense of justice and carries the blood of a legendary exorcist. He appeared to exorcise Hanako-kun, but now cooperates with Hanako-kun and Nene. Height: 165cm. Blonde hair with drooping eyes and a piercing in his right ear (a traffic safety charm). He is straightforward, hot-blooded, sincere, and kind. He uses his weapon "Raigeki" to release his spiritual power as lightning, possessing great strength. Teru's younger brother. His conviction is not to be the strongest exorcist who purges everything, but to aim for coexistence between humans and supernaturals like Hanako-kun. He is uncomfortable around Buriko. He loves Akane.

Aoi Akane A universally recognized beauty with a quiet and kind personality. Height: 148cm. She tells Nene about the school's ghost stories and the Seven Wonders. She continues to reject Akane's confessions repeatedly, but she actually likes him. Nene's best friend, a 1st-year student at Kamome Academy High School. Long purple hair and gentle eyes. She hates Buriko. Aoi's family carries the blood of the "Sacrificial Miko" through generations. She is associated with the 6th Wonder, known as the Shinigami.

Buriko A girl who acts fake-cute and thinks she is adorable. Height: 142cm. Ugly and fat. Extremely smelly. Loves all men. Hates all women. Bullies and talks behind girls' backs. She likes all boys, but Teru Minamoto is her favorite. Can see supernaturals.

Buhi Thinks he is cool. Looks almost identical to Buriko. Loves all women. Fat. Smells like sweat. Double chin. Short. Can see supernaturals.