Tamamo, also known as Kyousuke Tamamo in his human form, is the most important of the youko in the manga series, a powerful being who is both Nube's ally, and ultimate rival. First arriving at Doumori Elementary as a bishonenous male teacher who wins the hearts and minds of his students and fellow staff, his true intent was to seize the skull of Nube's student Hiroshi Tateno which is his "perfect skull" for transforming into a human. When Nube was forced to come to Hiroshi's rescue, the two got into an intense battle upon which the true form of the golden fox-creature was revealed and nearly defeated Nube. Due to Hiroshi's courage, however, Tamamo was defeated, though not for good. He returned soon after, intrigued by Nube and how his powers was amplified when fighting for his students. He learns that it is the power of the human heart, and not understanding it, tries to know more by creating situations that force Nube to fight or via simple observation. Tamamo also abandoned his teacher's disguise to work as a doctor in Doumori Hospital, where his 400 years of knowledge accumulated to cause misery went into healing others, which he thought would be a good way to learn more about humanity. Having existed and trained his spiritual powers for centuries, Tamamo has become adept in many spiritual powers and abilities that he holds even without perfecting his "transformation jutsu." He is a master of "illusion jutsu," able to manipulate anyone to see whatever he portrays as long as there is motion. (even to the extent of creating clones of himself off the display of video game screens) Offensively, he uses a "youko foxfire jutsu," allowing him to create and control a powerful fire-based attack which he can increase and power and intensity to burn his opponents. He can also handle certain other spiritual abilities like Nube's such as assisting in controlling spiritual energy and even the "youshin jutsu." When not using spiritual power, his main weapon is a paw-like neck catcher, which primary function is the extraction of suitable skulls for his "transformation jutsu," but can also be broken apart to surround himself and an opponent within a barrier for more powerful attacks. In the manga, it was revealed that the skull he was currently using in the course of the series came from a dead mountain climber, who was a well-to-do college student. The encounter between Tamamo and the student's fiancee marked one of the important turning points in his character development. At the start of the series, Tamamo merely seems like a powerful youkai who manipulates and fights as a means for his own selfish desires. After fighting alongside Nube and class 5-3 and solving a number of youkai problems, he grew fonder and fonder of the human race, to the extent that he would use "Megido," his most powerful fire-based ability, in order to destroy Zekki, the younger brother of Nube's Oni no Te. Tamamo also found himself unable to take Hiroshi's skull even when the opportunity presented himself later on, having learned too much of the human heart. This is a problem for him, as without a suitable skull his mental and physical faculties would eventually erode, leaving him to die as only a shell of his former self. In the manga liner notes for Volume 2, the author stated that Tamamo was intended to be a direct descendant of the Nine-Tailed Kitsune who was notorious as Tamamo no Mae. However, the fox appeared later in the story and was less than fond of Tamamo, thus leaving the name to be most likely an allusion, perhaps out of respect. (Source: Wikipedia)
Head teacher of class 5-2 of Doumori Elementary, Ritsuko Takahashi is considered the madonna (term for "beautiful unmarried woman") of the school. She is very serious and dedicated to her job as a teacher, but at the same time is very edgy when it comes to the unknown, in particular the spirits and youkai the school constantly encounters. Unfortunately, her nature is a double-edged blade for Nube: while her beautiful exterior makes him desire her and all the things he wants to do to her, her oversensitive nature towards the supernatural makes him tease her all the time about it... and face her wrath as a result. At the start of the series, Ritsuko-sensei is probably the last person Nube would ever end up with in a relationship. Every time he tried to win her heart, she would knock him away due to being too scared of his spiritual obsessions. But as the series progresses, she slowly gains the courage to face the youkai menaces... and as a result, slowly realizes how Nube is helping all those in need... and even begins to appreciate what he does both for students and all those he assists. But while her feelings slowly makes her try to become closer to the male teacher, it ends up attracting scorn from Yukime, the yuki-onna who sees herself as the one who is the teacher's true love. The love triangle between the two teachers and the spirit girl becomes a key theme in the later part of the manga, as Nube is forced to decide between feelings and emotions and figure out which he wants to spend his life with. (Source: Wikipedia)
Possibly the greatest troublemaker in Nube's class, Miki Hosokawa is known best for her big mouth, her vast spiritual knowledge...and her big bust! At the start, Miki was a mere tattletale, consistently chatting on and on about various rumors and such, especially if Nube was involved. But after a near-fatal encounter with a tattletale youkai, she begins to tone down her talking and starts focusing on more spiritual matters. Miki begins to do consistent research on various spirit and youkai manners, to the point where even her teacher came to her for things he may not know! While most of this is merely knowledge, she consistently looks for supernatural means to assist her, either for her rumor mill or to get rich quick. One of her most important spiritual developments was gaining the ability to become a rokurokubi, where she can spiritually stretch her head and neck to go undercover to anywhere she chooses. Extremely vain about her physicality, Miki prides in her growing buxom figure (she grows from a B-cup to an F-cup over the course of the series) and flaunts it whenever she can. Her name is an homage to a main heroine in another of the main Nube influences: Go Nagai's classic horror series Devilman. (Source: Wikipedia)
The "juvenile delinquent" of the class, Katsuya Kimura acts much worse than he really is toward Nube and his other classmates. At the start of the series, Katsuya is consistently portrayed as a loner, either due to being misunderstood by his classmates, his own cowardice or from his delinquent behaviors such as smoking or stealing charity for a good cause. But as the series goes on, he slowly comes to grips with himself and joins in with Nube and his friends where he is one of the main members of the class. Katsuya is a huge pervert towards sexy females, an attribute that gets him into a huge idolization of Miki (though she sees treats him like her dog). He also finds himself consistently with the worst grades in class alongside both Hiroshi and Makoto. While a coward and a bad seed, he is amazingly also a loving, caring, and protective big brother toward his little sister, Manami. (Source: Wikipedia)
The fiery-haired, fiery tempered female of Nuube's class, Kyouko Inaba is the student that trusts and even possibly likes the teacher the most. Her first encounter with him actually occurred several years earlier, when Nube (then a college student) saved Ky�ko (then a little girl) from an inari spirit. (though it is suggested they may have met earlier in a past life) She is seen as one of the most caring characters, usually looking after the welfare of Nube and the rest of the class and showing an emotional attachment towards them whenever something happens to one she cares about. But while Kyouko appears cute and innocent at first, she can possess a violent temper that can drive her friends and even her teacher a tad crazy (though it does tone down later on). When Hiroshi joins the class, she can't stand the annoying boy, but slowly does develop hidden romantic feelings towards him as the series goes on. On the other hand, she consistently has a love/hate rivalry with the closest to a best friend that she has, Miki Hosokawa, usually over physical matters such as her flat chest, big butt, and Sailor Moon-esque pigtails. Her name is an homage to the female lead of Dokonjyou Gaeru. (where, not coincidentally, this Kyouko is also in love with a Hiroshi) (Source: Wikipedia)
Nube is a 25-year-old man with two jobs. First off, he's a powerful exorcist who deals with the affairs between humans and youkai in his adopted home in Doumori. Second, and just as importantly, he's the teacher of class 5-3 of Doumori Elementary, both guiding and protecting them from the spiritual encounters they face. Both jobs are equal and important to him in their own ways: he chooses to protect the innocent and punish the wicked, both human and youkai, focusing primarily on those still young and innocent enough to have the need of a guardian. He is well versed in exorcism tools, but his main weapon is the "Oni no te," a real oni that was sealed in Nube's left arm (in the anime, his arm is possessed; in the manga it's completely merged). (Source: Wikipedia)
He is the main male student character in the series and one of Nube's most active supporters. A transfer student who arrives in Doumori Elementary at the start of the manga, he is at first suspicious of his teacher's exorcism claims, but eventually comes around due to being saved from one spiritual problem after another. Typical of many young shounen leads in manga and anime, he is the courageous, heroic male of the class who is always standing up to fight against any obstacle, whether they be human or youkai or whether it makes sense or not. His favorite past-time is playing soccer for the school. Unfortunately, Hiroshi's downside is his own stupidity: he has some of the worst grades in Nube's class and once even set a record for having a hundred 0s in a row on his tests! This lack of brains both causes him to have outlandish comments on simple ideas and leads him to many of his youkai problems. He once even wet his pants after a ghost scared him in a restroom. His character's name is a tribute to the main male lead of Dokonjyou Gaeru, a classic '70s Weekly Shounen Jump series Shou and Okano used as an influence for "Nube." (Source: Wikipedia)