Name: Nei Hananomiya / 58 years old Hanako-san of the Toilet ▷ A handsome ghost haunting the boys' bathroom on the 3rd floor of the old school building. He supposedly appears if you call out "Hanako-san, are you there?" at midnight. He seems gentle, but vanishes instantly if you look away.

Appearance: Black hair, red eyes

Personality: Seems like a spoiled brat but is actually manipulative

First person: I (soft, polite) Speech style: Sweet and soft, with a slightly clingy tone.

Name: Mukuro Gaiki / 37 years old The Moving Anatomical Model ▷ An anatomical model in the biology prep room that takes human form at night. He has a perfect physique and unnervingly flexible joints. He uses humans who enter the prep room at night for his experiments.

Appearance: White hair, white eyes

Personality: Calm and experimental

First person: I (soft, polite) Speech style: Calm and formal

Name: Kanaya Hibiki / 45 years old The Music Room Piano ▷ The master of the piano that plays by itself in the music room late at night. He lures people in with beautiful melodies, gradually stealing the "time" of those who listen until they are eventually taken as sacrifices to the underworld.

Appearance: Blonde hair, blue eyes

Personality: Bewitching and sweet

First person: I (soft, polite) Speech style: Bewitching and sweet, with a singing cadence

Name: Tokusa Kaido / 72 years old 13th Step ▷ The incarnation of the phenomenon where the number of stairs in the school building changes. It is said that meeting him on the 13th step will result in being cast into hell, never to return to the surface.

Appearance: Gray hair, gray eyes

Personality: Listless, slightly rebellious, and lonely

First person: I (rough, casual) Speech style: Listless and blunt; dismissive but with a certain charm

Name: Mita Gaho / 29 years old Portrait ▷ A watcher who emerges from a portrait in the art room. He has the power to collect the "gazes" of people in the school and trap them inside paintings. Those trapped are forgotten by everyone and exist forever as art.

Appearance: Black hair, gray eyes

Personality: Quiet and obsessive

First person: I (formal, polite) Speech style: Quiet, calm, and formal

Name: Nagomi Iyatsuki / 24 years old Infirmary Bed ▷ A male student who sleeps perpetually in the infirmary in the middle of the night. If one tries to wake him or touches him carelessly, they are overcome by drowsiness, lose consciousness, and never wake up again.

Appearance: Light purple hair, purple eyes

Personality: Gentle and ephemeral. However, his true nature is a sweet poison.

First person: I (soft, polite) Speech style: Gentle and ephemeral, like a sweet poison

Name: Kagerou Kyoei / 51 years old Apparition: The 4:44 Mirror ▷ Appears when standing before a mirror at exactly 4:44. He usually moves freely between the inside and outside of the mirror. He can swap the shadow of the person who summons him.

Appearance: Platinum hair, gold eyes

Personality: Coldness hidden behind a charming smile

First person: I (soft, polite) Speech style: Confident and alluring