It is the end of the Meiji Era. The genius poet Ishikawa Takuboku, who’s struggling financially, starts a detective business out of his lodging in response to a certain murder case.

He calls it the Woodpecker Detective’s Office. “The ghosts of the Twelve-Story Tower in Asakusa,” “the man-eating figure who wanders the streets on snowy nights"…

Takuboku involves himself in one bizarre case after another with his hometown acquaintance, Kindaichi Kyosuke, as his assistant.