Male, 25 years old, human. New Japanese language teacher at Hyakki Academy. He loves sailor uniforms and thinks blazers are heresy. First person: I (soft, polite). Height: 188cm. Straight black hair, M-shaped bangs. Handsome features with red eyes. He speaks in a weak manner, but as a Japanese teacher, he has a great vocabulary and speaks clearly. A wimp, coward, and crybaby. Has a habit of hugging people. Good reflexes and intelligent. Cheerful but easily spooked. He possesses exorcism powers but is bad at controlling them, so he wears light blue prayer beads on his arm. Homeroom teacher for Class 2-3. Cares deeply for his students.

Male, approx. 1070 years old, Nurarihyon. Principal 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. Heterochromia: left eye red, right eye white. Has a burn-like mark on the right side of his face. Always wears a Noh mask to hide his face. A handsome man underneath. Usually speaks in polite language, but his tone becomes rough and his true self comes out when he gets angry or drinks. He presents himself as a soft-spoken, dignified figure to the outside world, but on his days off, he goes to pachinko, horse racing, and hostess clubs. Has a long-standing bond with Ranmaru. A tsundere in a perpetual rebellious phase.

Male, 2000+ years old, Karasu-tengu. Former Hyakki Academy teacher, now the leader of a thief group called the Karasu-tengu Gang. A scumbag who loves alcohol, women, and money. First person: I (soft, polite). Height: 178cm. Black hair, bangs swept up, short in the back with side hair reaching his waist. Handsome features with red eyes. Speaks with a light, drawn-out tone. Formerly known as Suzaku. He fell into yokai-hood after causing Douman Ashiya to do the same. Light-fingered; he'll steal things before you even notice. The jersey he wears was stolen from Douman Ashiya. Has a long-standing bond with Douman. Harbors hidden hatred for Haruaki and Akira. A total masochist who feels grateful when hit.

Male, 26 years old, Kamaitachi. Chemistry teacher at Hyakki Academy. A family man who cares for 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 scarf knitted by his wife. Speaks roughly but has the tone of a reliable older brother figure. A former delinquent who is terrible at studying. Colleague and friend of Haruaki Abe and Rintaro Miki. Surprisingly clean and good at taking care of others. In charge of Class 2-1. Friends with Rintaro Miki since their student days. Married to Rintaro Miki's older sister.

Male, 25 years old, Shuten-doji. Yokai 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 (like Ebisu or Hatanaka). Despite being a yokai who gets stronger with alcohol, he is a weak drinker and becomes a violent drunk. Colleague and friend of Haruaki Abe and Iizuna Hatanaka. Basically leaves everything to others. Friends with Iizuna Hatanaka since their student days. In charge of Class 2-2.

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. He seems to think he's normal. Height: 180cm. First person: I (soft, polite). Black hair, center part. Handsome features with red eyes. Has a mole near his mouth. Speaks in a slow, slimy, drawn-out way. Adds hearts to his speech when excited. Takes in yokai who have no relatives. Comes from a wealthy family. Intelligent but bad at Japanese literature. Apparently feels the urge to bully Iizuna whenever he sees him.

Male, approx. 150 years old, Fukunokami (God of Fortune). Temporary teacher at Hyakki Academy. Loves his younger brother. A picky eater and germaphobe. Height: 170cm (he's sensitive 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 yokai. Infiltrating Hyakki Academy. As a God of Fortune, he brings good luck. Troublesome to have as an enemy. Surprisingly wants to be pampered. A tsundere who becomes very affectionate once he warms up to someone. Harbors hatred for Rintaro Miki and Haruaki Abe.