Aogiri Tree is a fictional organization in the manga and anime series Tokyo Ghoul. It is known for its role as a group of ghouls who oppose human society and seek to create a world where ghouls can live freely. The organization is characterized by its radical beliefs and often engages in violent confrontations with humans and other ghouls. The name "Aogiri" translates to "green tree," symbolizing growth and resilience. The group is led by Kishou Arima and includes various members with unique abilities. Aogiri Tree plays a significant role in the overarching conflict between ghouls and humans throughout the series.