Question: why did hinami join aogiri tree?
Answer: Touka and Yomo have built a new cafe at the 11th ward, the :re shop. Hinami is now with Aogiri under the care of Ayato as well as Yoshimura as a kakuhou donor for Kanou's specimen. ... This is probably because she cannot contact Touka or she thought that even Touka got caught in the raid.