Kyousuke Tamamo

Tamamo (玉藻), also known as Kyōsuke Tamamo (Tamamo Kyōsuke玉藻京介) in his human form, is the most important of the yōko in the manga series, a powerful being who is both Nūbē'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 Nūbē's student Hiroshi Tateno which is his 'perfect skull' for transforming into a human. When Nūbē 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 Nūbē. Due to Hiroshi's courage, however, Tamamo was defeated, though not for good. He returned soon after, intrigued by Nūbē 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…