While at an observatory with Poe, Ranpo witnesses a murder that appears to be another "perfect crime". Ranpo identifies Mushitaro as the culprit and manages to corner him by cleverly manipulating events to force Mushitaro into a taxi with him.
Ranpo enlists the help of Edgar Allan Poe to track down a "Specialist" capable of destroying evidence for Fyodor. This specialist is revealed to be Mushitaro Oguri , a man who possesses an ability that creates "perfect crimes" by erasing all traces of evidence.
The episode features the Season 4 opening theme "True Story" by Screen Mode and the ending theme "Shirushi" by Luck Life . Bungou Stray Dogs 4th Season Episode 4
A former rival of Ranpo's who assists him in finding the specialist's location.
Doppo Kunikida is in prison, having been framed for the murder of a young girl who detonated a bomb during the "Cannibalism" incident in Season 3. Ranpo Edogawa visits him while wearing a teddy bear costume—a punishment for the Agency's previous actions—and vows to clear his name, realizing Fyodor Dostoyevsky is behind the trap. While at an observatory with Poe, Ranpo witnesses
The antagonist of this episode; his ability, The Perfect Crime , allows him to erase evidence of any crime he chooses.
Following the three-episode "Untold Origins of the Detective Agency" arc, this episode returns the series to the present day. This specialist is revealed to be Mushitaro Oguri
Currently incarcerated and struggling with the guilt of the young girl's death. Production Notes