Tosakamaru is a male tengu character appearing across multiple installments of the franchise, including the OVA "Nurarihyon no Mago: Gekitō Dai Futsal Taikai! Nuragumi W Cup!!". He belongs to the Nura Clan's Mount Takao Tengu Party and is the middle son of Karasu Tengu. He forms one-third of the Sanba Garasu triplet unit with his brothers Kuroumaru and Sasami. He stands 178 cm tall and weighs 68 kg. His distinguishing features include naturally blond hair styled in a mohawk present since birth, blue eyes, thick eyebrows, and the absence of a tokin headpiece. He typically wears an orange robe and green trousers, accessorized with a white necklace. Tosakamaru exhibits a quiet and serious personality, though his father describes him as possessing an innate wildness comparable to an eagle. He demonstrates unwavering loyalty to Rikuo Nura, consistently following orders without hesitation alongside his siblings. Within the series' narrative: * During the Gyūki Arc, the Sanba Garasu rescue the Kiyojūji Paranormal Investigation Squad on Mount Nejireme, creating a diversion to extract Mezumaru for interrogation. * In the Shikoku Arc, he investigates destroyed shrines under Rikuo's command, battles Inuhouou by redirecting his fire attacks, and aids in tracking Sodemogi. He later assists in transporting the defeated Inugamigyoubu to his son and participates in the clan's victory celebrations. * Throughout the Kyoto Arc, he guards the Nura main house and supports allies like Kappa and Amezo against Kyoto Demons, having accompanied his father to Kyoto. In the OVA "Gekitō Dai Futsal Taikai! Nuragumi W Cup!!", Tosakamaru appears as a supporting character. No substantial character evolution or additional background beyond his established role in the main storyline is recorded for this special.