Jin Kisaragi is a major character in the BlazBlue series, serving as one of the main protagonists. As the younger brother of Ragna the Bloodedge, Jin is a high-ranking officer in the Novus Orbis Librarium and the wielder of the powerful Nox Nyctores weapon, Yukianesa. He is known for his cold demeanor, obsession with his brother, and remarkable combat skills. Throughout the series, Jin's complex personality and inner conflicts drive much of the story's drama and character interactions.