Aogiri Tree (jpn. アオギリの樹, romanized aogiri no ki, Eng. Chinese parasol tree) is an organization of ghouls that has usurped the power in the 11th ward and has started targeting the ghoul investigators in the ward.

The majority of members were from the 24th ward when the organization was first established. So it is supposed that the leader is from the 24th ward as well.

Anime: Tokyo Ghoul