Atsushi is working with his previous foe, F. Scott Fitzgerald, in order touse the "Eyes of God" surveillance system to find clues. In the forest, Yosanois approached by the Port Mafia with a request to join them. What is the pastthat Yosano has tried to keep hidden?
Atsushi-his confidence shot thanks to Q's mental assault-is finally caught by the Guild, due to Fitzgerald's sheer physical might and Alcott's abilities. Q, left to his own devices, turns his eyes toward his next target-Lovecraft, a Guild skill user shrouded in mystery. Soon, the Guild's scheming turns the promised land of Yokohama into a sea of flames-and Atsushi is forced to stand strong once more! !--EndFragment--
Regaining consciousness after nearly losing his life to Akutagawa, Atsushi is paralyzed by the thought of bringing more death and destruction down on the heads of his companions at the Armed Detective Agency and vows to run away. But before he can make good on his resolution, the Mafia sends Ryuurou Hirotsu of the merciless Black Lizard squad to storm their offices! Between the bomb-tossing Motojirou Kajii and the demure, kimono-wearing Kyouka Izumi, will the Mafia's literary giants close the book on Atsushi and the Armed Detective Agency for good?!
Atsushi's far-fetched idea to form an alliance with the Mafia results in a summit between crime boss Ougai Mori and Armed Detective president Yukichi Fukuzawa. But when negotiations fail, Dazai has no choice but to infiltrate enemy territory alone to secure Q. There, Dazai runs into some unexpected trouble...until a familiar man appears before him...!!--EndFragment--
The American group of ability users known as the "Guild" appears, led by the wealthy Francis Scott Fitzgerald, who has his sights set on the Armed Detective Agency! Can Agency president Fukuzawa stop him...!? Not if Guild member Lucy Montgomery and can help it!