Arata Kokonoe, also known as Nine, is one of the main protagonists in the anime series 'Zankyou no Terror'. He is a highly intelligent and enigmatic teenager who, along with his partner Twelve, is part of the mysterious group known as Sphinx. Nine is characterized by his calm demeanor, strategic thinking, and a deep-seated desire to expose the government's dark secrets. Throughout the series, he plays a pivotal role in orchestrating a series of terrorist attacks to draw attention to their cause, highlighting the themes of justice and redemption.