Episode 33

The Masked Assassin (仮面ノ暗殺者,) is the 33rd episode of Bungo Stray Dogs anime series. It first aired on May 31, 2019.

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

Summary
Fukuzawa is seen walking when he stumbles upon blood tracks. He follows it, and it leads him to a dark alley. He is then attacked by a masked assassin but can stop him. Out of nowhere, Fukuzawa was shot by poison, resulting in Fukuzawa losing consciousness.

Atsushi rushes to the agency office upon hearing about Fukuzawa's condition. Currently, Fukuzawa is confined in a hospital.

On the other hand, the Black Lizard is after the culprit but fails to catch them. Mori is seen with Elise shopping when the car they are in is hijacked with a bomb. Dazai visits where Fukuzawa was attacked, investigates the scene and immediately deduces the culprit.

Elise manages to save Mori from the explosion. Meanwhile, Akutagawa reports Mori that the prey has taken their bait. Akutagawa rushes to an alley and encounters the masked assassin. Akutagawa attacks the assassin - eventually learning his identity, the pastor of the Guild.

At the explosion scene, Mori is approached by a police officer, asking if they are okay. After learning they are okay, the police officer stabs Mori - revealing the officer as Fyodor Dostoevsky and runs away. Elise fails to catch him, and Mori collapses on the ground, bleeding.

Akutagawa confronts the masked assassin. Much to Akutagawa's surprise, Hawthorne doesn't know him and appears to have lost his memories.

Fyodor is seen retrieving his clothes when Dazai approaches him. Dazai directly asks him what poison was used on Fukuzawa and states the Rats in the House of the Dead's goals in obtaining the Book in Yokohama. Fyodor reveals the poison as a virus ability and explains how it works. With this learned information, the Port Mafia also plans what to do to save Mori.

In the middle of the conversation, Dazai was shot by a sniper. Fyodor leaves Dazai with Dazai, revealing that he came to the scene knowing he would get shot to obtain the information. Fyodor reveals his true intention of finding the book. From afar, Atsushi and Kyōka are seen looking for Dazai, eventually finding Dazai injured.

At the hospital, the other agency members are still trying to find a plan to save Fukuzawa's life. Atsushi rushes to them and reports that the Port Mafia have surrounded the hospital. Ranpo comes out of the room and orders Kunikida to give them orders. Chūya receives a report about the agency members defending the hospital room and proceeds to order Akutagawa and Black Lizard on the front. The Port Mafia then faces the agency.

Abilities

 * A Feast in Time of Plague
 * Falling Camellia
 * Rashomon
 * The Scarlet Letter (flashback)
 * Upon the Tainted Sorrow
 * Undefeated by the Rain (flashback)