Eto Yoshimura is a central antagonist in the anime and manga series Tokyo Ghoul. She is the mysterious leader of the Aogiri Tree, an infamous ghoul organization, and is also known as the One-Eyed Owl. Eto is the daughter of Yoshimura and possesses both human and ghoul traits, making her a unique and powerful hybrid. Her cunning intelligence, manipulative nature, and immense strength make her a formidable adversary to the protagonists. Throughout the series, Eto plays a pivotal role in shaping the conflict between humans and ghouls.