Chūya Nakahara vs. Ranpo Edogawa

Chūya Nakahara vs. Ranpo Edogawa is a battle fought between the Port Mafia executive Chūya Nakahara and Armed Detective Agency member Ranpo Edogawa

It happened outside the Port Mafia base after the agency decided to take on the mafia in order to save Yukichi Fukuzawa from the cannibalism virus.

Prologue
Shortly after the agency members have gathered again and failing to catch the virus ability user, Ranpo decides to stage a frontal asault. He further states that they cannot overturn the enemy's traps and lets the agency members to decide whether to join or not with their fight with the mafia. Ranpo estimates that once the mafia knows Fukuzawa's location in the safe space, they will resort to terrorism. Ranpo together with Tanizaki, Kenji, and Yosano are among those who decided to join the fight. They then set off to fight the mafia.

Battle
Ranpo faces Chūya during the agency's fight with the mafia. Ranpo states that he will stop Chūya from reducing their chances of winning. Chūya responds that Ranpo might be the agency's linchpin but he has no zero fighting power. Ranpo provokes Chūya stating that he have lost to Dazai before. Chūya activates his ability and charges forward to Ranpo. Ranpo immediately opens a novel which lures Chūya in. Ranpo states that the novel consists of thousand people, half of which are murderers. The were both then transported into the novel.

Aftermath
Poe's pet Karl picks up the novel and leaves. Later on after the cannibalism, Ranpo is able to get out from the novel while Chūya was stuck in the novel, revealing that the latter gave up and is just killing the people inside.

Manga and Anime Differences

 * In the manga, they confront each other at an alley Unlike in the anime where they face each other outside the Port Mafia base with additional Port Mafia guards guarding the building.