The Guild Aftermath Arc

The Guild Aftermath Arc (余波編,) is the third story arc in Bungo Stray Dogs.

Synopsis
After the Guild war, the Armed Detective Agency went to back to their daily tasks of doing client jobs. Meanwhile, the Port Mafia captured a man named Fyodor Dostoevsky. On the other hand, Louisa May Alcott looks for Francis Scott Key Fitzgerald in attempt to persuade him in going back to the Guild.

Zoopark Confrontation
After the Guild war, the agency members are seen taking a break at a café. Atsushi approaches them for a client request but of all them passes on the request. Atsushi reports that after the Guild's defeat, many foreign gangs have entered the country aiming to seize its assets to which Ranpo also shares that he saw an ex-Guild member on the street yesterday.

The next day, the agency members see the café ransacked and store manager bleeding telling that some strangers came in demanding to see the agency. Soon after, the agency finds Zoopark, the group responsible for the ransack and confronts them.

It is then revealed that Lucy Maud Montgomery is currently working as part-time staff at the café.

Orphanage Director Accident
Atsushi arrives at the murder scene in replace for Ranpo. Tanizaki briefs him about the investigation. Tanizaki shows him about the illegal handgun and torn magazine article the victim had. Atsushi shares what Ranpo had told him if he runs into trouble which is to look for the flower shop. After a while, Tanizaki updates Atsushi that they have an I.D of the victime based on his prints and it reveals to be the orphanage director.

Shocked by what he learned, Atsushi screams. Tanizaki consoles Atsushi and reeals that the director has been looking for Atsushi. The two still tries to figure out why the director has been waiting for someone and decides to ask Dazai if he knows something.

Atsushi meets the informant which turns out to be Akutagawa and he reveals that a Port Mafia armorer was supposed to buy the gun from him and gives the director's history file. Atsushi learns about the director's past. Atsushi overlooks the director's funeral from afar. After the investigation, Dazai approaches Atsushi and tells him that the director must have wanted to buy flowers for Atsushi after learning his accomplishment after the Guild war.

Shōsaku Katsura's Revenge
Kunikida is on his way to an anti-terror meeting with the M.P. staff. Upon arriving at the train station, Kunikida is contacted by Dazai about a visitor for Kunikida who makes his notebooks, Master Carlyle. However, Kunikida is unable to visit him due to his schedule. Upon boarding a train, he sees a stranger giving a case to a young girl. He remembers about Tanizaki's report that someone has been giving cases that contain bombs. Kunikida rushes to the young girl and steals the case which turns out contains bombs. He then throws it to the air and immediately contacts the relief and forensics team.

Kunikida immediately asks the young girl if she is okay whose name is Aya. Aya drags Kunikida to the investigation. While investigating, Kunikida finds a bomb stapped on the train railway. Upon turning back, he sees Aya strapped with bombs and is threatened by a hooded man who knocks out Kunikida.

After waking up, Kunikida sees the culprit to be Shōsaku Katsura, the man whom Kunikida arrested two years ago for trying to blow up a school with refined illegal explosives. Katsura confronts Kunikida. Kunikida manages to trick Katsura in opening his book, hence remotely manifesting a stun grenade, causing for Kunikida to be able to restrain Katsura. Katsura reveals that the shutoff signal for the bombs for both train railways and the one strapped to Aya is the same. Kunikida shuts off the bomb at the train railway and sacrifices himself together with Aya.

After the explosion, Katsura sees Kunikida and Aya unharmed, which turns out that Akiko Yosano heal them and Kunikida knowing that Yosano is near the station at that time. Soon after, Katsura is arrested. It is revealed that the next president after Fukuzawa will be Kunikida.

Katai Tayama's Introduction
Kunikida and Atsushi are on their way to meet a former agency member to help them in their investigation regarding Moby Dick's control device. The member reveals to be Katai Tayama however he can't use his ability due to him being lovesick. Kunikida and Atsushi decide to help him cofess his feelings in order for their investigation to proceed.

Meanwhile, Higuchi is seen driving when he notices Akutagawa on his day-off. She sees a woman approach Akutagawa much to Higuchi's shock.

Atsushi and Kunikida are seen looking for the woman when Higuchi sees both of them from afar. Short after, Kunikida and Atsushi find Higuchi thanks to Atsushi's tiger ability. After learning that the agency is looking for the woman for a confession, Higuchi expresse her support. Katai soon joins them in their investigation. The four of them finds the woman. Both and Katai chase after the woman, who is later revealed to be Gin Akutagawa. Katai proceeds to give his confession letter even knowing that the woman is a mafia member. However, Katai is rejected giving him a time to move on from his unrequited love and fulfill the task for the agency.

Fyodor's Capture
Port Mafia captures Fyodor specifically by a mafia executive named Ace. Ace has taken the initiative to deal with Fyodor to which Mori gives his approval.

Ace approaches the captured Fyodor and frees him from his shackles. He orders his subordinates to attend to Fyodor. Short after, Ace offers Fyodor to team up with him in order to take Mori's head. However, Fyodor proposes to kill instead which led to Ace breaking a wine bottle on Fyodor's head and shows his ability. He leaves the room with a warning to Fyodor about choosing his choice to live or not.

Soon after, Ace arrives back at the room. Fyodor proposes a contest in order to decide his fate through a card game - the condition being that if Fyodor wins, he regains his freedom otherwise he will be Ace's slave. The two start the game which results to Ace's defeat. After losing, Ace immediately tries to contact his subordinates to kill Fyodor but is unable to do so. Ace reveals that he knows Fyodor's ability to manipulate consciousness and space hence the two being in Fyodor's consciousness and the cause of Fyodor winning. Soon after, Ace makes his action to escape the space by killing himself.

Karma encounters Fyodor at the hallway much to the former's shock and fear. Fyodor reveals that he purposely slip false information about his ability and his true goal for being captured is to obtain the list of Port Mafia ability users Ace gathered. He then kills Karma and leaves.

Appearances
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Impact

 * Kunikida is revealed to be the next president of the agency.
 * Fyodor obtained the list of Port Mafia's ability users.
 * A former Armed Detective Agency member was introduced.
 * Kyoka learns about her past.
 * Atsushi found out that the orphanage director died.
 * Fitzgerald and Louisa May became the members of the Renewed Guild.
 * Fitzgerald obtained Manhasset Security.