TV-Series
Description
Izuna Hatanaka is a character from the anime and manga series A Terrified Teacher at Ghoul School! He is a 26-year-old kamaitachi, a type of animal yōkai often depicted as a weasel with sickles for limbs. Standing 183 centimeters tall, his human form has black hair, red eyes, and he typically wears glasses along with a long red scarf. This scarf, a signature part of his appearance, was knitted for him by his wife. In his true yōkai form, he can transform into a small, weasel-like creature with scythes for arms. Even in his human guise, he can manifest his arms and tail as sharp, blade-like sickles.

On the surface, Izuna presents himself as a serious and responsible teacher, but he is a former delinquent whose rough demeanor can surface, especially when he becomes angry or frustrated. He has a short temper and is easily irritated by students who break rules or fail to follow dress codes. This can cause him to "flip his switch" and revert to his old, hot-headed personality. He is often the target of good-natured ridicule from colleagues regarding his low academic ability, with rumors even circulating that he paid his way through university exams. Despite this, he excels in subjects related to yōkai and teaches chemistry, demonstrating confidence in his specialized knowledge. One of his most notable vulnerabilities is a severe fear of doctors, which makes him terrified of Dr. Takahashi, the school medic, and he will often try to escape when confronted by medical professionals.

Beneath his gruff exterior, Izuna is deeply empathetic and fiercely dedicated to those in his care. He has a sharp ability to sense the emotions of others and provides quiet, reliable support to both students and colleagues from behind the scenes. He genuinely cares about his students' well-being and is willing to put himself in harm's way to protect them. This sense of responsibility also extends to the new, human teacher, Haruaki Abe; unlike others who were initially wary, Izuna showed no fear of Haruaki, trusting in the judgment of the school's Principal.

At Hyakki Academy, Izuna serves as the homeroom teacher for Class 2-1 and also teaches chemistry. He acts as a student advisor and is seen as the Principal's right hand, playing a key role in the school's daily management and discipline. He is a close friend and classmate of Miki Rintarou, having known him since high school. His most significant relationship is with his family. He is married to Miki Ibara, who is his best friend's sister, and the couple have three children: a daughter named Saki, and two sons named Kamae and Taichi. For a long time, his wife's identity was a mystery, but it was revealed through a story arc where Izuna was sent 120 years into the past. There, he met a younger, more reserved Ibara who was engaged to another man. Despite his own doubts about the difference in their lifespans—Ibara as an oni could live five centuries while he, an animal yōkai, would live only one—Ibara promised to wait for him. This revelation solidified the deep bond they share in the present, where Izuna is highly protective of her and is the only one who can calm her down when she is enraged.