Port Mafia boss Mori wants Yosano to join them in exchange for assisting the Detective Agency through their crisis. Yosano reveals why she would rather not.

Tanizaki, Miyazawa and Yosano head to the site where Yosano is scheduled to be handed off to the Port Mafia.

Dazai and Sigma are trapped in a flooding room. Atsushi is attacked by Akutagawa when he attempts to help Aya. During their fight Aya desperately tries to remove the holy sword from Bram.

The final pieces of Fukuchi's plot snap into place, trapping Fukuzawa in a way not even Rampo could anticipate. At the same time, Fyodor and Dazai's deadly game draws to a close.

While the leaders of the Port Mafia and the gifted special operations division meet via Ango, Dazai is close to discovering the true significance of the conflict between the three groups. However, in despair, Odasaku's deaf to Dazai's entreaties not to go alone to Mimic's headquarters where Gide awaits...

Trusting in a life that doesn't require her to kill, Kyouka works her first job at the Armed Detective Agency, but the job ends in a minor disaster. As Atsushi attempts to cheer her up, the unthinkable happens--Kyouka's inactive cell phone rings, and a voice orders Demon Snow to attack Atsushi.

John S. and Lovecraft hunt down Naomi and Haruno as they flee from town. While Atsushi and Dazai wait for them to arrive at the train station, Dazai notices a shady figure stalking him.

Atsushi is abducted onto the Moby Dick. Meanwhile, Lovecraft succeeds in capturing Q. Francis F. and the Guild prepare to carry out what they call their "emergency plan."

Rampo receives an invitation to a detective game from none other than E. A. Poe. He's indifferent at first, until Poe reveals what the reward would be should he win.

Atsushi searches desperately for the control terminal, which he would need to stop the Moby Dick from crashing into Yokohama. He's greeted by Akutagawa and Francis, both of whom have other plans in mind.

Atsushi and Akutagawa fail to call off the Moby Dick's descent. They search desperately for other ways to protect Yokohama.

Nakahara Chuuya and Dazai Osamu reveal the truth behind Arahabaki, Randou, the former Port Mafia boss and Chuuya himself.

Port Mafia executive Ace captures Fyodor, who was behind the destruction of the Moby Dick. Keeping him captured may prove to be more difficult.

The café that the Detective Agency members frequent is attacked by The Park, who are after the Guild’s property.

The Agency is tasked with finding and delivering an important document. A man is hit and killed by a truck. His identity shocks Atsushi.

Louisa reunites with Fitzgerald, but he’s not quite the man he used to be.

The leaders of the Port Mafia and the Detective Agency are attacked by an assassin in a mask, leaving both of them ill.

Tensions between the Detective Agency and the Port Mafia run high as they both scramble to save their own leaders while avoiding an all-out war.

Security police officer Fukuzawa Yukichi arrives at work to discover that his client had been assassinated. The assassin is already apprehended by the time he arrives, but something doesn’t quite seem right.

Fukuzawa gives Rampo a pair of glasses, claiming that wearing them would activate his ability to instantly determine the truth of any situation, and taking them off would give him the ability to tolerate the stupidity of the ordinary person.

Rampo gets a ride to the police station, but the officer doesn’t seem to be who he says he is.

Kunikida is being held for a murder that Rampo is certain he didn't commit. Meanwhile, Poe is determined to solve a murder mystery that has had the police stumped. Rampo has some thoughts on that situation, too.

The Detective Agency is framed for the brutal murder of several government officials. Its members are on the run from the Military Police.

The president of the Detective Agency is arrested, and Kunikida is missing after having blown himself up with a grenade. Meanwhile, Atsushi and Kyouka are on the run, looking for a way to defeat the true mastermind: Fyodor.

Atsushi and Kyoka help Mushitaro escape. However, they get surrounded by the Bureau, led by Ango Sakaguchi.