Nakajima Atsushi, a starving, homeless orphan, encounters a man floating down the river who appears to be drowning. Atsushi dives in and rescues the man, who comes to consciousness and introduces himself as the suicidal maniac, Osamu Dazai. Dazai's colleague, Doppo Kunikida yells at Dazai from across the river and ends up treating Atsushi to a meal of chazuke in a tea house. Atsushi discovers that Kunikida and Dazai work for the Armed Detective Agency, an organization of individuals possessing s
Atsushi wakes up in a dorm room owned by the Armed Detective Agency. He receives a call from Dazai, who claims that there is an emergency. Atsushi frees Dazai from a suicide attempt in a barrel and decides to look for a different job outside of the agency. Dazai offers to help him and the pair eventually runs into Kunikida who hurries them to a scene of actual emergency. A man had taken a hostage and was threatening to blow up the building. Dazai and Kunikida play rock paper scissors to determin
Higuchi Ichuyou requests help from the agency to deal with some smugglers. Kunikida warns Atsushi about someone named Akutagawa, a member of Port Mafia. Higuchi reveals herself as a member of Port Mafia and attacks Naomi. Junichirō retaliates with his ability "Light Snow" but is defeated when Akutagawa appears. Atsushi transforms into the tiger and both battle until Dazai shows up and cancels both powers with "No Longer Human" revealing he saw through Higuchi's act. Akutagawa reveals that Dazai
After the encounter with Akutagawa and Higuchi, Atsushi wakes up on the Agency's clinic where Tanizaki is shown to be healed by their doctor, Yosano Akiko, using unorthodox methods. Kunikida warns Atsushi that the Port Mafia's guerilla squad might enter the Agency and he suggests to do something before things end up in a bad manner while Higuchi calls for the members of the Black Lizard Squad (which consists of Tachihara, Hirotsu, and Gin) to infiltrate the Agency. Atsushi returns to the Agency
Atsushi is tasked to assist Ranpo, one of the Agency's most intelligent detectives to a murder case on an embankment that revolves around a dead policewoman and where they also meet Dazai. Using his special ability named "Super Deduction", Ranpo reveals that she wasn't killed by the mafia and it is rather a copycat crime committed by a police officer on the scene. The end of the episode marks the story of how the murderer got bribed by a corrupt diet member to kill the policewoman and how Ranpo
An episode coming from the first light novel: Dazai Osamu's Entrance Exam which revolves around a series of cases involving the Azure King where the usual victims are tourists taking a specific cab and never to be seen again by the public. Rokuzou, an orphan hacker who is helping Kunikida, validates a tip, and Kunikida, dragging Atsushi and Dazai in this case, go to the location where the victims are. There, they are able to save one of the victims, Sasaki Nobuko from almost drowning in a water
After getting a notification about a bomb being planted, Kunikida, Dazai and Atsushi set off to locate it. They get help from Rokuzou, Ranpo and the President in finding the location, but are interrupted from stopping the bomb from setting off by a man having the power of numbers and his partner. However, Kunikida and Dazai's partnership proves be superior and they are able to stop the blast from happening. Later, when Kunikida goes to the graves of the people who died, Sasaki also visits, claim
A normal day starts in the Agency when Atsushi asks to where Dazai went, not knowing that he was kidnapped by the mafia's newest assassin, Izumi Kyouka. Atsushi is then dragged to Yosano's shopping trip which ends with both of them aboard a train, with the doctor fascinated on his regenerative ability after the incident to Rashomon biting his leg only for an explosion to happen, which Kaiji Motojirou orchestrates. While Yosano fights with the bomber, Atsushi meets Kyouka with her terrifying abil
Now that Kyouka has been saved by the Agency, Kunikida reminds Atsushi that the girl has killed 35 people and is currently being wanted by the government. Nonetheless, Atsushi still treats Kyouka to a lot of places where she wants to go and even earns a rabbit stuff toy for her. Once they are done, Kyouka immediately heads to the police station much to Atsushi's reluctance but before he could even respond, Akutagawa stabs him with his ability and takes Kyouka by himself. Meanwhile, Dazai is stil
Dazai has a face-off with his ex-partner, Chūya, as Chūya attempts to uncover Dazai's true intentions for letting himself get captured. Meanwhile, Kunikida then locates Atsushi, while Kyōka gives him the chance to escape after she detonates explosives to sink the vessel. Kunikida urges Atsushi to jump and leave the girl behind, thinking that they cannot always save others. However, Atsushi steals his resolve and rushes to save her, believing that she, like how the Agency once took him in, can st
Dazai decides to write new year’s greeting cards, but it’s not clear if he has the humanity to pull it off.
Dazai and Atsushi swap minds when they bonk heads. Datsushi doesn’t mind, but Azai wants him to stay out of trouble. Atsushi tries to get back at Dazai for all the times he’d surprised him.