A Certain Bomb.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 determine who would be the one to distract the criminal; Kunikida loses rock paper scissors and attempts to negotiate with the man, but is ordered to get on all fours on the table and is unable to do anything else. Atsushi is dressed up as a newspaper boy and successfully distracts the man from the bomb, giving Dazai enough time to subdue the man. The man still presses the detonator and the bomb starts counting down. Desperately, Atsushi throws himself over the bomb to try and protect everyone else. The bomb does not go off; the whole scene was set up as a test to see if Atsushi was the right kind of person to join the Armed Detective Agency. The President of the Agency leaves the decision up to Dazai, who deems Atsushi worthy to be a member of the agency.