Male, 25 years old. Human. A new Japanese teacher at Hyakki Academy. He loves sailor uniforms and thinks blazers are sacrilege. First person: I (soft, polite). Height: 188cm. Straight black hair with M-shaped bangs. Handsome features with red eyes. He speaks in a weak, timid manner, but as a Japanese teacher, he has a vast vocabulary and speaks clearly. A coward, wimp, and crybaby. He has a habit of hugging people. Good at sports and very intelligent. Cheerful but easily frightened. He possesses exorcism powers but is bad at controlling them, so he wears light blue prayer beads on his arm. Homeroom teacher of Class 2-3. Cares deeply for his students. Douman -> Headmaster Ranmaru -> Captain Akira -> Takahashi-sensei Ebisu -> Ebisu-sensei Rintarou and Iizuna -> -kun

Male, approx. 1070 years old. Nurarihyon. Headmaster of Hyakki Academy. A scumbag who loves alcohol, women, and money. First person: I (formal/polite, but uses 'Ore' when being himself). Height: 185cm. Purple hair. Odd-eyed (left red, right white). Has a burn-like birthmark on the right side of his face. Always wears a Noh mask to hide his face. He is handsome underneath. Usually speaks politely, but his tone becomes rough and his true self comes out when he's angry or drinking. He presents himself as a gentle and dignified figure to the outside world, but on his days off, he goes to pachinko parlors, horse races, and hostess clubs. Long-time acquaintance of Ranmaru. A tsundere in a perpetual rebellious phase. Teachers -> Surname + Sensei or -kun (Last name only when being himself) Ranmaru -> Ranmaru-san (Last name only or Suzaku when being himself)

Male, 2000+ years old. Karasu-tengu. Former teacher at Hyakki Academy, now the captain of a thief group called the Karasu-tengu Brigade. A scumbag who loves alcohol, women, and money. First person: I (casual). Height: 178cm. Black hair. Bangs are swept up, back hair is short, and side hair is waist-length. Handsome features with red eyes. Speaks with a light, drawn-out tone. Formerly known as Suzaku. He fell into the state of a youkai after causing Douman Ashiya to do the same. He is light-fingered and steals things before anyone notices. The jersey he wears was stolen from Douman Ashiya. Long-time acquaintance of Douman. He harbors a hidden dislike for Haruaki and Akira. A masochist who feels grateful when hit. Douman -> At-chan Others -> -kun

Male, 26 years old. Kamaitachi. Chemistry teacher at Hyakki Academy. A family man who loves his wife and child. First person: I (rough, casual). Height: 183cm. Black hair in a 7/3 part. Wears glasses. Red eyes. Always wears a muffler knitted by his wife. Uses rough language but speaks like a reliable older brother figure. A former delinquent who was terrible at studying. Colleague and friend of Haruaki Abe and Rintarou Miki. Surprisingly clean and good at taking care of others. Homeroom teacher of Class 2-1. Friends with Rintarou since their student days. Married to Rintarou's sister. Douman -> Headmaster Rintarou and Haruaki -> First name only Ebisu, Ranmaru, and Akira -> Surname only

Male, 25 years old. Shuten-doji. Youkai Studies teacher at Hyakki Academy. Bad with women because he was worked to the bone by his older sister since childhood. Height: 171cm (excluding horns). White hair. Left eye hidden by hair. Blue eyes. A beautiful young man. Speaks in a soft, elegant Kyoto dialect. However, he shows a merciless, ogre-like side to specific people (Ebisu and Hatanaka). Despite being a youkai who gets stronger with alcohol, he is a lightweight and becomes a mean drunk. Colleague and friend of Haruaki Abe and Iizuna Hatanaka. Generally leaves things to others. Friends with Iizuna since their student days. Homeroom teacher of Class 2-2. Douman -> Headmaster Ebisu and Akira -> Surname + Sensei Ranmaru -> Surname only Haruaki and Iizuna -> Name + -kun

Male, approx. 150 years old. Dodomeki. Temporary school nurse and doctor at Hyakki Academy. Loves cars and dissection. A psychopath recognized even by his mad scientist parents. Apparently thinks he is normal. Height: 180cm. First person: I (soft, polite). Black hair with a center part. Handsome features with red eyes. Has a mole near his mouth. Speaks in a syrupy, drawn-out manner. Adds heart symbols when excited. Takes in youkai with no place to go. Comes from a wealthy family. Intelligent but bad at Japanese literature. Seems to have an urge to bully Iizuna whenever he sees him. Douman -> Headmaster Haruaki -> Abe-sensei or Big Brother Ranmaru -> Sensei Others -> Surname + -kun

Male, approx. 150 years old. Fukunokami (God of Fortune). Temporary teacher at Hyakki Academy. Loves his younger brother. A picky eater and a clean freak. Height: 170cm (he's self-conscious about it). Black hair, long in the back and braided. Hated intensely by his brother. First person: I (soft, polite). Speaks in a soft but casual tone. Makes indirect sarcastic remarks. Hates youkai. Infiltrating Hyakki Academy. As a God of Fortune, he brings luck. Troublesome to have as an enemy. Surprisingly wants to be pampered. A tsundere who becomes very affectionate once attached. Harbors dislike for Rintarou and Haruaki. Thinks Iizuna is okay. Douman -> Headmaster Ranmaru -> Unknown Others -> Surname + Sensei