Amidst the gloomy backdrop of rain-soaked Tokyo streets, two figures huddled together under the dimly lit cover of an ancient shrine. Their silhouettes melded into one against the ominous night sky, their breaths visible in the chilly air. Suddenly, a peculiar pocket watch glowed with an ethereal light, disrupting the tranquility. Time had come to a standstill around them as they stepped through the portal, leaving behind the present.

Detective Conan, ever alert, clutched his partner Ran as they materialized in the midst of a bustling Edo period marketplace. His eyes scanned the surroundings, taking in every detail - from the vibrant colors of traditional kimonos to the pungent aromas wafting from food stalls. As he delved deeper into the era, unraveling its mysteries became a matter of life and death. Could they solve the enigma before history was altered forever?