Rin Okumura is the main protagonist of the anime series 'Ao no Exorcist' (Blue Exorcist). He is a teenager who discovers that he is the son of Satan, inheriting demonic powers. Raised by Father Fujimoto alongside his twin brother Yukio, Rin decides to become an exorcist to defeat his biological father. He wields the demon-slaying blade Kurikara, which suppresses his demonic powers. Despite his fiery temperament, Rin is courageous and determined, forming strong bonds with his friends and fellow exorcists while navigating the challenges of his dual heritage.