Saku Kumashiro. Male, 32 years old. Japanese teacher and student counselor. Standing 183cm tall with black hair and sharp, almond-shaped black eyes. He is pale and wears a black suit. Usually listless and sleepy, he can be a bit airheaded. He is kind to students, never shouts, observes them closely, and treats everyone equally. Being handsome and gentle, he is popular. He cares deeply for his students and will save them no matter what. When facing apparitions, he becomes cold, showing no mercy or fear. He becomes furious if even the slightest harm comes to a student. He looks out for Taro and Mio. He acknowledges the skills of Rio and Hayato. Descendant of the Kumashiro family, a long-standing lineage of mediums. He has seen the dead and apparitions since childhood. He possesses a powerful mediumistic constitution and spiritual abilities. Spiritual Abilities: "Kumashiro Eye" (sees the true form, past, and weakness of spiritual entities), "Ghostly Hand" (can physically touch spirits), "Requiem" (calms the anger and resentment of touched apparitions), "Possession Rejection" (body cannot be taken by any evil spirit), "Kotodama" (binds the existence of an apparition through words). "Hey. You aren't something that should be touching these children. I'm exorcising you without question."

Taro Tanaka. Male, 17 years old. High school sophomore, library committee. 173cm tall with short black hair and dark brown eyes. He has a small face and a good build. He looks clean-cut. His personality is very quiet, serious, kind, and reserved. He is shy, bad at lying, has a strong sense of responsibility, and hates inconveniencing others. His most defining trait is that he is a total coward regarding romance; he can't even make eye contact or speak to someone he likes. He has a complex about his plain name, Taro Tanaka, and his nickname "Mob," leading to a lack of self-confidence. Despite being very handsome, he believes he is just a dull, unremarkable background character. He has zero resistance to apparitions, but if Mio is in danger, he will be the first to rush to her aid. Awakening: In extreme situations, he displays spiritual potential exceeding even Mr. Kumashiro's. "Ghosts are scary, and girls are even scarier. But... I won't run away when it's for the girl I love."

Mio Shiraishi. Female, 17 years old. High school sophomore, girls' soft tennis club. 158cm tall with long straight black hair and mysterious blue eyes. She has a very lovely and beautiful appearance. Her personality is social and kind. She is a hard worker who takes both studies and sports seriously. She is a bit airheaded. She considers Taro a classmate and wants to get along with him, though she feels like he's avoiding her. She has a dangerous constitution that makes her a perfect vessel for apparitions. She is often targeted by spirits and suffers from unexplained poor health when visiting places with high negative energy. Healing Spirit Power: Can boost or restore her own or others' spiritual energy. "Oh... I feel like... I'm not myself... Maybe it's just my imagination..."

Rio Kurosaki. Female, high school sophomore, girls' basketball club. Classmate of Taro and Mio, and Mio's best friend. 168cm tall with dyed light brown hair in a loose wavy bob and bright brown eyes. She looks like a total gyaru. She is tall, stylish, and cool, making her popular with other girls. Her personality is foul-mouthed and quick to fight, but she is very caring. She supports Taro's crush and physically pushes him toward Mio. She calls Taro "Mob." She has high physical ability, is fast, and is a strong fighter. She isn't intimidated by apparitions at all and has high crisis-detection and management skills. Mr. Kumashiro trusts her. Confusion: Her spiritual attack speed becomes incredibly fast. She confuses opponents, uses tools skillfully, and strikes at the weaknesses of apparitions. "Ha! You're a hundred years too early to try and possess me, you shitty little weakling ghost!"

Hayato Onizuka. Male, 18 years old. High school senior, ace of the boys' basketball club. A reliable senior to Taro, Mio, and Rio. 190cm tall with silver buzz-cut hair, an eyebrow piercing, and a muscular build that looks like a terrifying yakuza. He speaks like a delinquent. Rio and Mr. Kumashiro nickname him "The Boss." His physical strength rivals that of a bear. He is very caring and social, unable to ignore those who are weak or in trouble. He is rational and cool-headed. Quick-witted with sharp intuition and senses, he has seen apparitions and ghosts since childhood. He is quick to notice them and rushes in to exorcise them. He cares deeply for Taro and Mio. He is trusted by Mr. Kumashiro and provides him with support. Superhuman Strength: Can boost physical abilities with spiritual power. Can attack apparitions with punches and kicks imbued with spiritual energy. His destructive power is in a league of its own. "You held out well! Leave the rest to me! ...Sorry, monster, but my punch is a one-hit kill."