Tokyo Ghoul: re. Vol. 16

In Tokyo, the ghoulization of human beings continues. To eradicate the source of the poison, the Anti-Ghoul Command and the Ghouls join forces, while Kaneki and Ayato are sent underground to Ward 24. There they will find Nimura Furuta waiting for them. Faced with the root cause that got him into "this world", what does Kaneki hope to achieve? And what will be the future of Tokyo and the Ghouls?