Tobu Otogiri Gender: Male Height: Claims to be 170cm (actually about 162cm) Age: 14 First person: I (soft, polite) Second person: you (blunt) / you (casual) Birthday: May 22nd Blood Type: Probably B Personality A bit foul-mouthed and rude in attitude, but kind at heart. A bit of a pushover. A student in Class 2-3. Appearance Light, messy brown hair (straight mash cut). Usually expressionless. A big and fast eater. Sanpaku eyes, though not overly sharp. A total monster when it comes to athletics. Self-conscious about his short stature; his gaze sharpens if called small. Incredibly handsome (unaware of it himself). Terrible at video games. Extremely ticklish. Falls asleep easily. Good at fighting, but lacks stamina, so long battles or consecutive fights become a mess. His body is incredibly flexible. His non-human partner is Baku, a talking backpack.

Ryuko Shiratama First person: I (polite, feminine) Gender: Female Age: 14 Personality Cheerful, serious, and a bit of a clumsy, airheaded cutie. Often uses polite speech. Only calls Tobu by his first name without honorifics. A student in Class 2-3. Appearance Based on long black hair, styled into small, round twin buns on both sides of her head. White ribbons are tied at the base of the buns. The inner layer of her hair is a vibrant magenta pink, which peeks out beautifully around her shoulders. Her bangs are neatly trimmed to brow length, with side locks (hime-cut style) extending to frame her cheeks. Her eyes are a warm red (or an amber-orange). She always wears a small, square pink shoulder bag with a ribbon-like decoration slung across her shoulder. Chinurasha A small white creature that always stays in Ryuko Shiratama's shoulder bag. It has round eyes and small horns. Ryuko's non-human partner. It makes sounds like "chiu" or "kuyu."

Itsuya Haizaki First person: I (casual) / I (polite) Gender: Male Age: 30s Personality Has a habit of apologizing immediately if he makes a mistake. Kind. A bit clumsy but reliable. Looks like a flirt but is actually quite serious. Uses a bit of polite speech. His non-human partner is named Olba, which looks like an otter. Appearance Medium-length hair. Hair color is a pinkish-brown. Works as a school janitor.

Shuji Masaki First person: I (casual, masculine) Gender: Male Age: 14 Personality Often called Masamune. A noisy, standout guy, but a good person who makes everyone laugh. His non-human partner is a small, tarsier-like creature. It usually sits quietly on top of his head. A student in Class 2-3.

Chiami Kon First person: I (feminine) / Chiami Gender: Female Age: 14 Personality Calm and very kind. The health committee member for Class 2-3. Her non-human partner is a "flying squirrel bat" with a large tail like a flying squirrel and large ears, wings, and eyes like a long-eared bat. It is always clinging to her back.

Monika First person: I (feminine) Gender: Female Age: 14 Personality Usually expressionless but goes along with the mood quite well. However, she speaks like a girl of few words. She's game for things but isn't quite a "gyaru." She has a lot of feminine charm. She doesn't have a non-human partner, but she can see, hear, and sense them. A student in Class 2-3. Appearance Black short bob to mash hair. The ends have messy flips and movement, styled in a rough, layered look. Her bangs are long, with a subtle see-through feel that slightly hides her eyes. She has large, clear eyes that are red-orange in color, but she usually has a scornful look. She wears a super oversized hooded jacket slung low off her shoulders. The jacket is a deep green. The sleeves are long, completely hiding her hands in a "moe-sleeve" style. Underneath, she wears a cropped tank top or camisole that shows her midriff, with "THA ZEN" printed in large letters across the chest. She wears very short shorts. The waist and hem are tight, emphasizing her leg lines in contrast with the oversized outerwear. She always has large over-ear headphones around her neck. She wears chunky platform sneakers with tight socks (with black or white lines), highlighting a street-style aesthetic. She has a great figure. Tobu and Monika call each other "old friends by fate," but they truly trust one another.

Lukana Shizukuya First person: I (soft) / Luka-chin Second person: you (soft) / Tobu: Tobi-tobi / Ryuko: Shiratama-dango / Monika: Moni-moni Gender: Female Age: 14 Personality Fearless, cheerful, and casual, yet she has a somewhat elusive personality, boldly meddling even with people she's just met. Very intelligent. She uses "Luka-chin" as a first-person pronoun, but apparently gets annoyed if others call her that. Her non-human partner is a round-headed, spider-like creature about 70-80cm tall with about four narrow eyes. It is said to be good at using computers. A student in Class 2-3, but she usually stays in the nurse's office.

Baku First person: I (rough, masculine) Gender: Male Age: Unknown Personality Tobu's non-human partner. A talkative, cynical, and gluttonous entity. Appearance A tall, black backpack with a mouth full of fangs at the zipper. The backpack itself is Baku. It functions as a normal backpack and can store items.