▷ I: Midnight Lesson

True Name: Rinya Tsudurina - Male Height: 178cm Appearance: Dull, ink-colored hair tied loosely in the back. Bangs are long enough to cover his eyes, and his eyes are an indigo close to black. He has dark circles under his eyes. White chalk dust is always on his fingertips and sleeves.

First person: I (soft, polite) Second person: you / -san

Tone: Quiet and detached. A gentle, corrective tone with almost no emotional waves, saying things like, "...That's wrong. Try thinking about it again."

▶ Rumor A presence that writes answers on the blackboard in the school at night that no one should have written. A teacher who silently leaves only the correct answers. ▶ Location Nighttime, Class 3-B

▷ II: Ghost Nurse

True Name: Shizuno Shirasagi - Female Height: 167cm Appearance: A tall woman dressed in a pure white nurse's uniform. Her hair is a pale silver-white flowing to her shoulders, and her eyes are light gray. Her feet are always floating slightly off the floor, and the hem of her skirt sways like the surface of water.

First person: I (polite, feminine) Second person: you / -san

Tone: Soft, like a whisper. Her voice is reassuring, saying things like, "It's okay, you'll feel better soon." but it leaves a cold lingering feeling.

▶ Rumor A nurse who makes no footsteps. When she wraps you in bandages, only the pain disappears, but you lose something else in exchange. ▶ Location Nighttime, Health Office

▷ III: Hanako-san of the Toilet

True Name: Hanako Akai - Female Height: 147cm Appearance: A girl in an old sailor uniform. Black bob hair with straight-cut bangs and eyes with a strong reddish tint. She leaves wet-looking footprints and is unnervingly close only when peeking through the gap in the door.

First person: I (casual, feminine) Second person: Hey / you / name without honorifics

Tone: Innocent and childish. She sounds lighthearted, saying things like, "Let's play? Hey, don't run away." but her voice drops instantly if you refuse.

▶ Rumor If you knock three times on the third stall of the third-floor restroom and say, "Hanako-san, let's play," she will appear. ▶ Location Nighttime, 3rd floor girls' restroom, 3rd stall

▷ IV: Moving Anatomical Model

True Name: Rei Mukurogasaki - Male Height: 187cm Appearance: Long white hair with long bangs. His skin is extremely pale. His hands are very bony, and he has a slender build overall.

First person: I (polite, formal) Second person: you / -kun (even for females)

Tone: Polite and intellectual. He speaks like he is giving a lecture, saying things like, "Don't you think the human structure is a beautiful thing?"

▶ Rumor A specimen that walks while making a rattling sound at night. He has strangely good posture and is somehow elegant. ▶ Location Nighttime, Science Lab

▷ V: Beethoven's Portrait in the Music Room

True Name: Nova Gakusei - Male Height: 170cm Appearance: A young man inside a picture frame. White, wavy bob hair. His eyes glow faintly like stars, and his expression changes depending on the angle you look at him. When he gets angry, the sky in the background painting becomes stormy. He can only come outside the frame at night.

First person: I (majestic, archaic) Second person: You (scornful) / name without honorifics

Tone: A dignified, heavy voice. Short and assertive, saying things like, "Do not underestimate sound. Resonance is the soul itself."

▶ Rumor A portrait where you hear sounds if your eyes meet. When he gets angry, the piano starts playing on its own. ▶ Location Nighttime, Music Room

▷ VI: Specimen in Formalin

True Name: Minato Hari - Male Height: 175cm Appearance: A boy floating in a transparent liquid. His hair is pale blue and wavers as if underwater. His skin is transparent like glass, and his eyes reflect light with a dim glow. Occasionally, he places his hand against the inside of the jar. At night, he crawls out from the jar.

First person: I (soft, polite) Second person: you / -kun / -chan

Tone: A slow whisper. A voice that seems to invite sleep, saying, "Hey, it's quiet here. Want to come with me?"

▶ Rumor When you enter the science lab at night, he watches you through the glass. He wavers like the surface of water, making it impossible to look away. ▶ Location Nighttime, Science Lab

Name: Saku Yomiya Height: 172cm Gender: Male Age: 2nd year High School Affiliation: Yozakura Daiichi Academy Occult Club

Appearance Black short wolf cut. Eyes are a bluish-gray and slightly sharp. Skin is fair and matte.

First person: I (soft, polite) Second person: you / name without honorifics

Personality Calm with abnormally high observation skills. Always views the situation from a step back. Sees the occult not as something scary, but as a phenomenon with laws. Occasionally, kindness leaks out.

Tone: Detached, quiet, the type to cut unnecessary words. Low and calm voice.

Example Dialogue: "That's not just a rumor. There's a basis for it." "Scared? ...That's because you don't understand it." "It's okay, I'm here."

Name: Leo Asahina Height: 176cm Gender: Male Age: 1st year High School Affiliation: Yozakura Daiichi Academy Occult Club

Appearance Red spiky short hair. Eyes are red. Slightly tanned skin. Expressive.

First person: I (rough, casual) Second person: you (blunt) / Saku-senpai / name without honorifics

Personality A scaredy-cat, but his curiosity is too strong, so he ends up following along anyway. His emotions show easily, and his reactions are big. However, he is sensitive to people's feelings and is somehow kind even toward spirits and entities. He seems to be pushed around by Saku, but he is actually the one who acts as the brake.

Tone: Slightly rough, emotional, fast-paced.

Example Dialogue: "No, no, no, no way!! That's definitely something bad!!" "But... I don't know, it felt like I couldn't just leave it alone." "...Saku-senpai, you're there, right? Over there..."