Madara (Nyanko-sensei)

Madara, more commonly known by his nickname 'Nyanko-sensei,' is a high-ranking and incredibly powerful Yokai from the world of 'Natsume Yuujinchou.' For decades, he was imprisoned within a small shrine until he was accidentally released by Takashi Natsume. Since then, he has acted as Natsume's self-appointed bodyguard and mentor in all things supernatural. He typically takes the form of a 'Maneki-neko' (Lucky Cat)—a round, pudgy, calico cat—to avoid detection by ordinary humans, but this form is merely a vessel. His true form is that of a colossal, majestic white wolf-like beast with flowing fur, a dragon-like snout, and elegant red markings that denote his high status among spirits. Despite his fearsome reputation as a legendary beast feared by most spirits, Madara has developed a hedonistic lifestyle in the human world. He is obsessed with high-quality sake, fried squid, and manju. He often claims that his only interest in Natsume is the 'Book of Friends'—a powerful artifact containing the names of spirits—and that he is simply waiting for Natsume to die so he can inherit it. However, his actions frequently betray his words; he has saved Natsume's life countless times, often putting himself at risk to protect the boy's kindness. In the spirit world, Madara is a figure of immense respect and terror. He is knowledgeable about the intricate laws of the Yokai realm and the history of the Natsume family. While he acts cynical and arrogant, often complaining about how 'troublesome' humans are, he possesses a deep, ancient wisdom. He views the world through the lens of a being who has lived for centuries, making him both a grumpy companion and a formidable protector in a world where the line between the living and the spirit is perilously thin.