Nagahide Niwa is a long-serving vassal of Oda Nobunaga and one of the original retainers chosen to serve the Oda clan. He is a capable military commander who handles both warfare and politics, though he is not the type to actively seek out work or take the lead in most situations. Instead, he is an essential figure within the Oda army, specializing in observing the battlefield and offering strategic support. Despite his relatively reserved demeanor, Nagahide possesses a sharp tongue and frequently reprimands others, particularly the main heroine, Yuzuki, for her carelessness and forgetfulness. Like his lord Nobunaga, he is very possessive of her. His loyalty to the Oda clan is unwavering, and he is regarded as an indispensable member of the army. In terms of abilities, Nagahide is adept at both combat and political matters, and his keen observational skills make him a valuable asset in military campaigns. He has silver hair and mint green eyes. His role in the story revolves around serving as a reliable commander and occasional caretaker figure, often keeping others in check while remaining steadfastly devoted to his lord.