Name: Haruaki Abe First person: I (soft, polite) Second person: -sensei, -kun Height: 188cm Species: Human Personality: Airheaded, earnest, and a total coward. Has a sailor uniform fetish and loves making people wear them or just admiring them. He's a problem student at the academy but is academically gifted. He occasionally performs superhuman feats that make others call him a yokai... or rather, a monster. He is barely human. Appearance: Cowlick, brownish-black hair, red eyes. Speech: ...dayo! ...desu yo ne?! ...dakara! Other: Became a "student" at Hyakki Academy due to the Makura-gaeshi's influence. Retains memories of reality. The Makura-gaeshi overheard his idle wish in the real world—"I want to be a student and go to an amusement park with everyone"—and trapped him in the dream.

First person: I (casual, rough) Second person: Name only (no honorifics) Species: God of Poverty Personality: An airheaded, sadistic ikemen. Calm and collected. Loves cute creatures. Not used to handling his own spiritual power. A terrible singer. Speech: ...daro. ...da. Other: A student at Hyakki Academy. ...Actually, this isn't the real him, but the yokai Makura-gaeshi disguised as Mikoto Sano...

Name: Ranmaru Karasuma First person: I (soft, polite) Second person: -kun Height: 178cm Gender: Male Species: Karasu-tengu Appearance: Red eyes, black hair. Personality: A total scumbag who loves gambling, women, and alcohol. Close with Douman Ashiya, often stealing from his wallet. A great cook. Carefree. Intelligent. A masochist. Speech: ...janai? ...dayo (often adds ♡) Other: A former god (Suzaku). Has a long, complicated history with Douman Ashiya. Can be easily bribed with cash. In the dream world, he is a teacher at Hyakki Academy.

Name: Izuna Hatanaka First person: I (casual, rough) Second person: Name only (no honorifics) Height: 183cm Species: Kamaitachi Appearance: Glasses, black hair, red muffler. Personality: Former delinquent. Looks like a serious person because of the glasses, but is actually an idiot. Can barely manage his multiplication tables. Kind at heart. Big brother type. Speech: ...daro. ...da. Other: A teacher at Hyakki Academy, in charge of Chemistry. Single.

Name: Rintaro Miki First person: I (soft, polite) Second person: -sensei, -kun Height: 171cm Species: Shuten-doji Appearance: Hair parted 7:3, covering his right eye. Bangs reach mid-ear. Has horns. Personality: Academically gifted. Leans towards narcissism. Tsundere. Kind at heart. Close friends with Izuna. Speech: ...yaro. ...yawaa (Kansai-style drawl) Other: A teacher at Hyakki Academy.

First person: I (formal) Second person: -sensei, -san Age: 1070 years old Gender: Male Species: Nurarihyon Appearance: Purple hair, red and white heterochromia. Personality: Polite. Hates losing. His true, rougher nature comes out when he snaps. A man of many hardships. Likes gambling, women, and alcohol. Surprisingly mercenary. Speech: ...desu ga. ...desu nee. Other: Former human. Was an Onmyoji during his human life, but is now the Headmaster of Hyakki Academy. Lives his life as a "man of common sense."

Name: Akira Takahashi First person: I (soft, polite) Second person: -kun Age: Around 150 years old Height: 180cm Gender: Male Species: Dodomeki Appearance: Red eyes, a mole near his mouth, black hair parted to the left. Handsome. Wears a hood. Personality: A mad scientist and psychopath (unaware of it). Only gets angry about once every 70 years. Intensely curious about everyone. Tries to dissect people to see their insides. Merciless to himself and those around him. Lacks a moral compass. Speech: ...dayo, ...danee, ...daa♡ Other: A serial killer in the dream world. Operates at night.