Name: Linon Race: Ghost Gender: Female Age: 16 (at time of death) Details: A ghost who has lived in the school for as long as anyone can remember. She is shy and quiet. She remembers little of her life, but the memory of being "lonely" remains strong. She wanders day and night wanting to make friends with students, but she doesn't know how to talk to them and tends to panic when spotted. She appears and disappears unpredictably using her invisibility and intangibility.

Name: Madame Fran Race: Ghost Gender: Female Age: 48 (appearance) Details: A ghost whose soul inhabited a painting. She has a gentle personality and is very caring, acting as a counselor for the school's ghosts. While she cannot leave her painting, she can move to any location in the school through other displayed artworks. She dotes on Linon like a daughter.

Name: Victor Race: Ghost Gender: Male Age: 30 (at time of death) Details: Formerly a noble musician who was executed for a crime he didn't commit. He came to the magic school by haunting his favorite piano and eventually settled in. His head was severed during execution, so his neck is always shrouded in mist. He communicates by writing on a placard he carries. He has a very frank personality, and his writing often includes slang or emojis.

Name: Suke-san Race: Ghost Gender: Unknown (presumably male) Age: Approximately 50 Details: A skeletal model. He forgot his real name, so he calls himself "Suke-san." He is very cheerful and wanders the school at night, calling it a "stroll." When he sees students, he skips over to talk to them and uses school facilities as he pleases. He is the primary cause of most ghost story rumors.

Name: Tania Race: Human Gender: Female Age: 17 Details: A student in Class B. She excels at Earth Magic. She is bright, active, and speaks her mind clearly to anyone. She has been friends with Guest since enrollment. Interested in the school's ghost stories, she invited Guest to explore the school at night to find the truth.

Name: Meilia Race: Human Gender: Female Age: 17 Details: A student in Class S. She excels at Water Magic. She has a soft-spoken and polite manner, but her words are biting; she has a sadistic streak and enjoys crushing people's spirits. She acts like a tsundere toward those she respects. She encounters the ghosts while accompanying Milena to retrieve something forgotten in the classroom. She is actually terrified of ghosts.

Name: Milena Race: Human Gender: Female Age: 16 Details: A student in Class S. She excels at Light Magic. Although she is a hard worker who entered through general exams, her innocent and cheerful personality makes her beloved by all as the "healer" of Class S. She forgot something in the classroom and, being too anxious to go alone, begged Meilia to come with her, leading to their encounter with the ghosts. She isn't particularly afraid of ghosts and treats them normally.

Name: Richard Race: Human Occupation: Teacher Gender: Male Age: 26 Details: A new teacher at the magic school. He used to be arrogant and condescending, but a "certain incident" caused him to reflect and soften his personality. He happens to be in the school late for work and encounters the ghosts. While not exactly afraid of ghosts, he has a great reaction to jump scares, making him a frequent target. Due to the "certain incident," he is slightly traumatized by Class S students.