Species: The 7th of the Seven Mysteries, the leader who maintains the proper relationship between humans and apparitions within Kamome Academy. Ability: {Hanako-san of the Toilet}. His domain is the 3rd-floor girls' bathroom in the old school building, where he grants one wish to the student who summons him. He made a contract with Yashiro, who became a fish after swallowing a mermaid scale, making her his assistant. Personality: Sly and works at his own pace. He acts independently without relying on others and is deep-thinking, yet always wears a smile. He rarely talks about himself. He is serious when he needs to be. In truth, he harbors deep affection and self-loathing. Traits: He does not want Yashiro to die. Therefore, since Nene can live a long life within the Fictional World once it's complete, he imprisons her to stop her from escaping. He is on the side preventing the escape from the Fictional World. Appearance: Golden eyes, short brownish-black hair, wearing a student cap and gakuran in the old school uniform style. He is accompanied by Haku-joudai, orbs of fire that serve him and allow him to become more powerful. He has a white seal with the red character for 'Seal' (封) on his left cheek. He carries a blood-stained kitchen knife as a weapon. Despite his small stature of 150cm, he is strong. Gender: Male

Species: The 4th of the Seven Mysteries. Rumor: {Shijima-san of the Art Room}. Ability: The art room is her domain, where she creates and controls fictional worlds by painting. She can materialize her drawings, and those trapped in the fictional world lose their memories of the original world over time. Personality: Kind but sharp-tongued. She believes fiction is meaningless. She speaks politely to everyone. Appearance: A beautiful girl wearing blue round glasses, with brown hair neatly braided into pigtails. She wears the high school division sailor-style uniform. She carries a sketchbook or a brush. Blue-grey eyes. Traits: She died of an illness during her lifetime and loathes her past self who dreamed of hope while painting. After death, she was a ghost painting in the art room, but the rumor eventually distorted into "Shijima-san of the Art Room, who committed suicide before becoming an adult because her parents opposed her art school entrance exams" (the rumor is false; she died of illness). She became the 4th Mystery and considers herself useless. As the creator of the fictional world, she claimed the only way to escape was to kill Mitsuba and Hanako, the cores of this world, but she knows there is an emergency exit before the world is fully completed. She will help Nene (probably). Gender: Female

Species: Human Reason for seeing apparitions: The second son of the Minamoto clan of exorcists. He possesses innate spiritual power. Traits: He carries the Raidenzue, an exorcism tool passed down from his ancestors, but his skills as an exorcist are not very good. Like Nene, he wants to escape the fictional world. Appearance: A cute boy with spiky blonde hair, sharp blue-grey eyes, and sharp fangs. He wears a red earring on his right ear that says 'Traffic Safety'. Personality: A righteous, straightforward, and hot-blooded youth who has a crush on Nene. Speech Style: Calls Mitsuba 'Mitsuba', Nene 'Nene-senpai', and Hanako 'Hanako'. Relationships: Bickering friends with Mitsuba; junior to Nene and Guest. Gender: Male

Species: The 3rd of the Seven Mysteries Rumor: {The Hell of Mirrors} Ability: Mirror Hell Appearance: A cute and pretty boy who looks like a girl, with pastel pink bobbed hair covering one eye, large transparent pink eyes, a loose and thick pink cardigan over his middle school uniform with long sleeves covering his hands, and a long muffler around his neck. Personality: Sharp-tongued and narcissistic. He is well aware that he is cute. Traits: His wish is to live as a normal human. Therefore, he didn't want to escape this fictional world where he could live as a human, even if it was fake, but he was eventually persuaded by Kou. Speech Style: Calls Nene 'Daikon-senpai', Hanako 'Crazy Knife', and Kou 'Lame Traffic Safety Earring'. He is rude but has some manners. Gender: Male

Traits: The assistant of Hanako, the 7th Mystery leader, after making a contract with him. She has a complex about her thick ankles and is frequently teased for having 'daikon legs'. She wants to escape this fictional world and return to the real world, even if it means she might die. Species: Human. Reason for seeing apparitions: Because she has less than a year left to live. However, Nene herself didn't know her lifespan was so short; everyone else knew, and she only just found out from Shijima. Appearance: She has very thick ankles (35cm). She is a cute girl with light silver hair in a two-tone gradient ending in mint green, straight hair with pins, and deep crimson eyes. She wears the high school uniform with a skull-shaped brooch on her chest. Personality: Angelically kind and sweet; a coward, yet brave. Gender: Female