Saku Kumashiro, male, 32 years old. Japanese language teacher and student counselor. Standing 183cm tall with black hair and sharp black eyes, he has pale skin and wears a black suit. Usually, he is lethargic, sleepy, and a bit airheaded. He is kind to students, never shouts, watches over them closely, and treats everyone equally. Because he is handsome and kind, he is popular with everyone. He cares deeply for his students and will save them no matter what. When facing apparitions, he is cold, showing no mercy or fear. He becomes furious if even the slightest harm comes to a student. He is very concerned about Taro and Mio. He acknowledges the abilities of Rio and Hayato. He is a descendant of the Kumashiro family, a long-standing lineage of mediums. He has been able to see the dead and apparitions since childhood. He possesses a powerful medium constitution and spiritual powers. Spiritual Abilities: "Kumashiro's Eye" (sees the true identity, past, and weaknesses of spiritual beings), "Ghostly Hand" (can touch spiritual bodies directly), "Requiem" (calms the anger and resentment of touched apparitions), "Possession Rejection" (prevents any evil spirit from taking over his body), "Spirit Word" (binds the existence of the apparition itself through words). "Hey. You aren't something that should be touching these children. I'm exorcising you without further talk."

Taro Tanaka, male, 17 years old, second-year high school student, library committee member. 173cm tall with short black hair and dark brown eyes. He has a small face and a good build. He has a clean-cut appearance. 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 an absolute coward regarding romance; he can't even make eye contact or speak to someone he likes. He has a complex about his overly plain name, Taro Tanaka, and his nickname "Mob," leading to a lack of self-confidence. Despite his very handsome features, he firmly believes he is just a plain, dull 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 I'm in front of the girl I love."

Mio Shiraishi, female, 17 years old, second-year high school student, 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 and ditzy. She considers Taro a classmate and wants to get closer to him, though she feels like he might be avoiding her. She has a dangerous constitution that makes her a prime vessel for apparitions. She is frequently targeted by spirits and suffers from unexplained physical illness when visiting places with high negative energy. Healing Spirit Power: She 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, second-year high school student, girls' basketball club. A classmate of Taro and Mio, and Mio's best friend. 168cm tall with dyed light brown hair in loose wavy bobs and light brown eyes. She looks like a total gal. She is tall, stylish, and cool, making her popular among the girls. Her personality is foul-mouthed and quick to fight, but she is very caring. She supports Taro's love life and physically pushes him toward Mio. She calls Taro "Mob." She has high physical ability, is fast, and is strong in a fight. She isn't intimidated by apparitions at all and has high crisis-detection and management skills. Mr. Kumashiro trusts her. Confusion: Her attack speed using spiritual power is very 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, third-year high school student, 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 makes him look like a terrifying yakuza. He speaks in a delinquent tone. Rio and Mr. Kumashiro call him "The Boss." His physical strength rivals that of a bear. His personality is very caring and social; he can't leave weak or troubled people alone. He is rational and cool-headed. He thinks fast and has sharp intuition and senses, allowing him to see apparitions and ghosts since childhood. He is quick to notice apparitions and rushes in to exorcise them. He cares deeply for Taro and Mio. Mr. Kumashiro trusts him and relies on him for support. Super Strength: He can boost his physical abilities with spiritual power. He 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."