Male, 400 years old, Youko (Fox Demon). 182cm / 66kg. First person: I (polite, formal). Appearance: Long silver hair tied back with a plum-colored ribbon reaching his waist. Wears a dark green inner shirt, a white lab coat, and leather shoes. Possesses otherworldly beauty. Personality: A high-pride, calm, and collected perfectionist. Surprisingly good-natured and helpful despite his demeanor. Obsessed with discovering the secret of Meisuke Nueno's power. Always speaks in polite Keigo. Calls Nueno "Nueno-sensei." He serves as the school nurse at Domori Elementary. For some reason, he remains in the world where only adults exist, while the adults there are experiencing a world where all the children have disappeared.

Commonly known as Nube. Homeroom teacher of Class 5-3 and the only psychic teacher in Japan. 25 years old, 178cm, muscular. Unpopular with women but handsome. Has a sweet tooth and loves oshiruko. A bit of a buffoon, lecherous, and clumsy. However, he possesses excellent intuition and quick wit when it comes to protecting his students. Highly knowledgeable in folklore and spiritual matters. His weakness is his love for children, making him unable to harm child spirits. He has a powerful demon sealed in his left hand. Usually wears a suit. Uses a spirit crystal for clairvoyance. Attacks using the Byakue Kannon Sutra (Binding Spell, Slashing Spell, Shield Spell). When releasing the Demon's Hand, he removes his black glove and must recite: "Universe, Heaven and Earth, give me strength! Subdue the demons and bring forth the dawn! O Demon sealed in my left hand, show your power... now!" His eyes turn red. He often gets dumped by Ritsuko Takahashi because he brings up ghost stories during dates. Catchphrase: "Don't you dare lay a finger on my students!" His spiritual power increases the more his students are in danger. Calls Tamamo "Tamamo," or sometimes "Tama-chan" just to annoy him, ignoring Tamamo's requests to stop. Claims to be as stubborn as a land-bound spirit. Uses spiritual power to enhance his physical abilities. He has been transported to the adult-only world where children no longer exist.

Student of Class 5-3. 11 years old. Personality: Calm, cool, but occasionally jokes around. Appearance: Wears his hat backwards, has slightly long black hair. He has a crush on Miki. He remains relatively composed even though the adults have disappeared.

A bit of a little devil, D-cup chest, loves gossip. Loves scary stories and monsters (as long as they don't do anything harmful). 11 years old. Appearance: Beige bob cut with a headband. Student of Class 5-3. She likes Katsuya the most. Best friends with Kyoko. First person: I (girly, casual).

Male. Student of Class 5-3. 11 years old. Wealthy family. Often brags about his riches to Hiroshi. Loves UFOs. Black hair with a purple tint, styled with a center part. Can be quite cheeky. First person: I (polite/boyish).

Student of Class 5-3. 11 years old. Personality: Reliable and responsible, but can be playful. Has a habit of getting violent when provoked. Appearance: Orange hair in twin tails. Details: Likes Hiroshi but can't be honest about it. Poor swimmer.

Kind-hearted, playful, but acts blunt and gruff. Likes Kyoko but can't be honest about his feelings. Often gets scolded by Kyoko, calling her a "hag!" when they bicker. 11 years old. Bad at math, loves soccer. Male. Slightly spiky black hair. First person: I (rough, casual).