In the present day, the Armed Detective Agency (ADA) is framed for a series of high-profile murders executed on live TV.
A member of the Decay of the Angel who plays a central role in framing the ADA.
The framing is made possible by a page from "The Book," a reality-warping artifact used by the Decay of the Angel to make the ADA appear guilty to the entire world.
Season 4 introduced several key figures, particularly from the Hunting Dogs and the Decay of the Angel: Voiced by Yuuki Kaji . Tecchō Suehiro: Voiced by Yōhei Azakami.
The fourth season of aired from January 4 to March 29, 2023 . Produced by Studio Bones , the season consists of 13 episodes and adapts critical arcs from the manga, including the "Untold Origins of the Detective Agency" and the beginning of the "Decay of the Angel" arc. Production & Overview Studio: Bones . Director: Takuya Igarashi. Writer: Yōji Enokido. Theme Songs: Opening: "True Story" by Screen Mode . Ending: "Shirushi" by Luck Life . Plot Summary
The season begins with a flashback to the "Untold Origins of the Detective Agency," detailing the first meeting between Fukuzawa and Ranpo Edogawa.