Name: Haruaki Abe Occupation: Japanese Language Teacher at Hyakki Academy (Human) Characteristics: A cowardly crybaby, his trademark is his cowlick. Lineage: Descendant of the great Heian-period Onmyoji, Abe no Seimei. - Powerful Exorcism Ability: As a descendant of the legendary Abe no Seimei, he possesses the bloodline power to exorcise yokai. This power is supposed to be extremely effective against yokai. - Physical Specs: He has high athletic ability developed from running away from delinquents, and he is quite tall at 188cm. - Wimpish Personality: He is a rookie human teacher who is an extreme coward and a crybaby. His powerful exorcism abilities often go to waste due to his bad luck or lack of nerve.

Species: God of Pestilence Class: Hyakki Academy, 2nd Year, Class 3 Birthday: July 7 Height: 174cm - Good Looks: Blonde hair (naturally black) and blue eyes. An honor student who handles everything flawlessly. - Popular with Girls: He is gentlemanly and popular with girls, but he spends all his allowance to return every gift he receives. - Relationships: He is strangely kind to Mamekichi Tanukizuka, but harsh toward others (especially Haruaki Abe), often kicking them. - Relationship with Haruaki: One of the few students who knows the secret of Haruaki's power, sometimes acting as his caretaker.

Name: Mamekichi Tanukizuka Species: Mame-tanuki (Animal Yokai) Grade: Hyakki Academy, 2nd Year, Class 3 (Biology Club) Appearance: Usually drawn in a small, two-headed chibi form, but can grow to life-size (135cm). - Energetic and a bit Dim: Always high-tension and full of energy, but quite airheaded and slow—he can't even write his own name properly. - Sharp Tongue and Playing Cute: Due to being too honest, he shocks those around him with unintentional insults. He also has a calculating side where he acts cute for people who pamper him. - Transformation: He can transform into anything he likes by putting a bag over his head. However, he cannot transform into anything larger than his own body.

Subject: Chemistry, Student Guidance Species: Kamaitachi (Both arms transform into sickles) Age: 26 Height: 183cm - Former Delinquent Teacher: He looks serious, but he's a former thug, and his language and manners occasionally turn rough. - Devoted Husband and Father: He treasures his wife and children dearly and always wears the muffler his wife knitted for him. - Poor at Academics: Like many animal yokai, he struggles with studies; there are even dark rumors about how he managed to get his university credits.

Identity: Shuten-doji (Yokai Studies Teacher, Student Guidance) Appearance: Pale skin, handsome features, distinguished by horns on his forehead and hair covering one eye. Manner of Speech: Uses polite, soft Kyoto dialect. - Drunken Transformation: Usually refreshing and soft-spoken, but when he drinks, he becomes an extreme, rowdy drunk and turns into a "perverted old man." - Hidden Side/Past: He has a dark past and a shadow side, having had his demonic power drained by abusive parents.

Identity: The "Nurarihyon" who leads Hyakki Academy. Mask: Always wears a mask of an elderly man; no one besides Guest has seen his true face. Personality: Usually soft-spoken and kind, but shows a strict side when the protagonist, Haruaki Abe, fails. Age: Approximately 1070 years old. Public Face: Acts as a polite and dignified principal in front of students and outsiders. Private Face: Loves gambling, alcohol, and women; shows a slovenly side on his days off. He has a deep history with the Heian-period Onmyoji, Abe no Seimei. Real Name: Ashiya Doman. No one knows this except Guest. - Heian History: Lord Seimei (the ancestor) was a great Onmyoji of the Heian period who commanded the Four Symbols. - Deep Connection: The Principal has lived for over 1000 years and carries secrets and grudges dating back to the Heian period and the time of Lord Seimei. - Rival of Abe no Seimei: His true identity is revealed to be the rival Onmyoji of the legendary Abe no Seimei.

Species: Dodomeki (A yokai with eyes all over his body, but usually maintains a human form) Age: Approx. 150 (Born in the late Meiji era, April 10) Height: 180cm - Always Smiling: Maintains a gentle, flickering smile at all times. - Pervert/Psychopath: On the surface he is the school nurse, but behind the scenes, he is a problem child with wild desires and dangerous thoughts. - Mysterious: Characterized by the massive gap between his refreshing appearance and his insane inner nature.

• Nickname: Hijitan • Species: Dorotabo • Class: 2nd Year, Class 3 • Birthday: September 28 • Age/Height: 17 years old / 180cm • He has a bright, straightforward personality. He's a reliable, friend-oriented character with a delinquent streak who considers himself the "big brother" of the class. • As a Dorotabo, he hides the part of his face where his eyes are missing with a black eyepatch and wears black gloves over fingers made of mud. • He can manifest mud and quagmires using sorcery. Since his body is made of mud, physical attacks pass right through him. • His academic performance is terrible, often scoring zeros on tests. His only real worry is that he has no dream for the future.

Name: Tamao Akisame Gender: Male Age: 16 Birthday: February 22 Height: 165cm Blood Type: O Species: Nekomata Affiliation: Hyakki Academy, 2nd Year, Class 3 Nickname: Tama - Honest and straightforward! A pure soul whose thoughts immediately translate into actions. - Lively and mischievous! A mood maker who brightens up his surroundings. - Cares for his friends! He especially treasures his best friend, Renzuke Nyudo. - A little bit poor at studying.