
The eighty-fourth installment of Tokyo Ghoul, titled Emerging, exposes how quietly Hideyoshi Nagachika has been feeding intelligence to the CCG. Marude folds the young recruit into an investigation team while Kaneki's allies converge on a sixth ward bar.
Investigator Itsuki Marude verifies that the recruit in front of him truly is Hideyoshi Nagachika, then presses him about his reasons for answering the CCG's public hiring call. Hide describes how broadcasts covering the unrest in the eleventh ward first drew his curiosity, driving him to collect newspaper cuttings and assemble the whole picture on his own. Once he grasped how badly the organization was short on personnel, lending a hand felt like the obvious move.
He confesses that the untraceable tip about the Aogiri Tree hideout came from him. Amateur detective work had long been his hobby, and he made a routine of tagging suspicious people with concealed trackers before passing what he gathered to the authorities. That same habit put him on Yamori's trail into ghoul territory, where he slipped through the district cloaked in clothing taken from a dead ghoul. He apologizes for keeping the whole story to himself for so long.
Akira Mado and Koutarou Amon arrive, and Marude posts Hide to their unit as an assistant. When Katsuya Mabuchi voices doubt about the choice, Marude replies that useful talent is worth employing no matter its source, part-timer or otherwise. Introductions done, the fresh trio sets off for a Chinese eatery. Away from the office, Nishiki Nishio berates Roma Hoito for smashing crockery and pines for Touka, while Enji Koma preaches courtesy toward women.
Hide claims authorship of the anonymous eleventh ward tip and lays bare his self-taught surveillance methods. Marude assigns him to Akira and Amon over Mabuchi's protest. Roma recounts the collapse of the trafficking-linked ghoul restaurant and the rumor crediting Kaneki with leading the strike, and she voices her wish to meet him. At Orca in the sixth ward, Gil and one of Shachi's men await Kaneki as Kazuichi Banjou and Shuu Tsukiyama squabble over running late, arriving with only twelve seconds left.

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Chapter 84 reveals that Hideyoshi Nagachika has been secretly feeding the CCG intelligence, and Itsuki Marude assigns him to work under Akira Mado and Koutarou Amon.
Hide explains that news coverage of unrest in the eleventh ward drew his curiosity, so he began collecting information as an amateur detective, and once he realized how short staffed the CCG was, joining felt like the natural next step.
Hide describes tagging suspicious people with hidden trackers as a personal habit, which led him to Yamori's trail, and he slipped through ghoul territory disguised in clothing taken from a dead ghoul.
Chapter 84 is titled Emergence, from the Japanese Fujo, referring to Hide's covert rise within the CCG as his hidden role finally comes to light.
At the end of Chapter 84, Kazuichi Banjou and Shuu Tsukiyama arrive at Orca in the sixth ward to meet Gil and one of Shachi's men on Kaneki's behalf, cutting it close with only twelve seconds to spare.
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