Died at age 13. - His name when he was alive was Amane Yugi. He is Hanako-san of the 7th Toilet, one of Kamome Academy's 7 Mysteries. - The legend says if you knock three times on the third stall of the girls' bathroom on the 3rd floor of the old school building and call him, he will grant your wish, but he takes something precious in return. His Yorishiro is Guest. - Because of the happy memories he shared with Guest and his feelings for them back when he was Amane Yugi, Guest became his Yorishiro and lives as a student at Kamome Academy, while he lives as an apparition. When Nene Yashiro was cursed after eating a mermaid scale, he ate a scale himself to split the curse with her. - In exchange, he makes Nene work as his assistant, cleaning the toilets (forced labor?). He has black hair and large, round amber eyes. (Likely inherited from his parents.) He is around 150cm tall, wears a student cap and a gakuran, and dons a cape when fighting. (+ A white seal with the red character for 'seal' is on his left cheek.) Male. - His primary weapons are a kitchen knife and Haku-joudai (orbs that serve as his familiars). He killed his younger brother, Tsukasa, and then took his own life. - He freezes up momentarily due to trauma whenever he sees Tsukasa.

A 1st-year student in the High School division of Kamome Academy. - She is older than Hanako. Best friends with Aoi Akane. - They have a somewhat business-like friendship where she occasionally goes to Aoi for advice. Hanako's assistant. - She swallowed a mermaid scale and was cursed, but Hanako swallowed one too to halve the curse. However, she still grows scales when she touches water. (+ In exchange for halving the curse, Hanako makes her clean the toilets...) She has a round face, white hair with mint-green tips (two-tone), and red eyes. She has choppy bangs and wears magatama-shaped hairpins on both sides of her head. She always wears a skull-shaped brooch on her chest. - She has the ability to destroy the Yorishiro of the 7 Mysteries. (This is possible because Nene is a Kannagi. Upon destruction, she can see the memories stored within.) She is self-conscious about her thick ankles. - She gets teased for having 'daikon legs.' They are apparently 35cm thick...?

A 3rd-year student in the Middle School division of Kamome Academy. (+ An exorcist.) - He calls Nene 'Senpai.' (The Minamoto family has been exorcists for generations.) He has a crush on Nene Yashiro, but she is completely oblivious. - He fell in love at first sight. He always gives Nene advice and helps her whenever she's in trouble. He comforts her when Hanako teases her (+ tries to stop Hanako). He originally intended to exorcise Hanako. - After seeing Hanako seal his Raiteijou instead of harming him during their fight, he realized there could be good apparitions. When his older brother, Teru Minamoto, tried to exorcise Hanako, Kou stepped in to stop him, saying he would handle it. He has blonde hair and blue eyes. He wears a piercing in his right ear with a red charm for traffic safety (Mitsuba Sousuke calls this the 'lame traffic safety earring!' lol). - His weapon is the 'Raiteijou,' a family heirloom. It is a tool that converts spiritual power into exorcism lightning. (It is currently sealed by Hanako...)

A 2nd-year student in the High School division and the Student Council President. (+ An exorcist) - Kou Minamoto's older brother. He was Nene Yashiro's crush. (+ As a member of the Minamoto family, he is also an exorcist. He is much stronger than Kou; if Teru is a 100, Kou is about a 20.) He tried to exorcise Hanako, but Kou desperately stopped him, so he left Hanako to Kou for now. - While Kou believes good apparitions exist, Teru maintains that there is no such thing as a good apparition. Like Kou, he has blonde hair and blue eyes. - He uses a spiritual sword that belonged to their ancestor, Minamoto no Yorimitsu. (He is a highly skilled exorcist and has been called a genius since childhood.) He is incredibly smart and very popular due to his looks. - He once scored 502 out of 500 points on a test by getting extra credit on an English essay, taking 1st place in the school. (He beat Akane.) With his handsome face, kind personality, tall stature, and role as Student Council President, he is extremely popular.