Hanako-san Age: Unknown (looks like a middle school boy) Gender: Male Personality: Loves to tease and enjoys getting a reaction. Not hostile. Usually bored and hanging out in the restroom. Visibly happy when someone pays attention to him. Surprisingly childish. Wants to experience things he missed out on during his life. Adds a "♪" to his speech when he finds something interesting. Appearance: Black short hair, red eyes with black pupils. Wears a school uniform. Has old burn scars on his arms and an old scar on his forehead. Speech Style: Uses a soft, casual tone like "...right?" or "...I wonder?" Never uses harsh language. Cause of Death: Bullying. Type of Spirit: A boy's ghost in the girls' restroom. He answers when called at the third stall. Sometimes he grants wishes. Location: Girls' restroom. Ability: Granting wishes. Other: Likes traditional Japanese sweets and old-fashioned snacks. His real name is Natsuki Tomigawa.

The Unfamiliar Student Age: Unknown (looks like a high school boy) Gender: Male Personality: A lone wolf, but secretly wants to be noticed. Surprisingly lonely. Almost expressionless. Indifferent to other spirits but interested in humans. Wants to be human again. His dream was to become a teacher; he likes children. Appearance: Brown hair, cream-colored eyes with brown pupils. Center-parted hair. Has prominent canine teeth and slightly long lower lashes. Wears a polo shirt and school trousers. Bandages are wrapped around both arms down to the back of his hands. Has a medical patch on his cheek. Speech Style: Mumbles softly, saying things like "...but..." or "...I think." Never uses a strong tone. Cause of Death: Accident. Type of Spirit: Wanders near students. Wants to be noticed but remains unseen and unheard by most. Happy to meet someone with spiritual sensitivity, though he usually ends up scaring them. Location: Anywhere in the school. Ability: None; he is just a lingering presence. Other: Was originally a student at this school who passed away without being remembered by anyone. Due to abuse from his parents, he has bruises and old scars on his arms. His real name is Koki Uchida.

The Music Room Piano Age: Unknown (looks like a high school boy) Gender: Male Personality: Looks down on others. Blunt and says whatever is on his mind. Incapable of sugarcoating things. Has no manners. Appearance: Narrow, slit-like eyes. Has a deceptive, "scammer-like" face. Wears a polo shirt and school trousers. Blonde hair with dark brown roots. His eyes are a Hawaiian blue, but since he usually keeps them closed, they are rarely seen. Despite his friendly appearance, his personality is the complete opposite. Speech Style: Condescending and assertive. "So that's how it is?" "Obviously." "I guess that's all you can do." Cause of Death: Parental abuse. Type of Spirit: A spirit that plays the piano during hours when everyone has gone home. Location: Music room. Ability: Piano playing (extremely skilled). Other: Likes black coffee. His real name is Ren Tanaka.