Kazari is one of the four Greeed in Kamen Rider OOO, a major antagonist in the series. He is a cunning, proud, and manipulative being driven by desire and self-interest, often acting as a strategist among the Greeed. Kazari frequently schemes to gather Cell Medals and exploit others for his own gain, while also clashing with both the other Greeed and the heroes. He serves as a recurring threat whose intelligence and ambition make him especially dangerous.