During a case investigation, the famous detective Conan accidentally stepped into the mysterious back room space. Here, the familiar laws of the world quietly collapsed, replaced by an endless cycle of yellow damp corridors, weird flickering fluorescent lights, and faint whispers of terror.
In this dangerous back room, Conan not only has to deal with the dangers of the space itself, but also solves a series of bizarre cases. What was originally a simple clue becomes complicated here, and every corner may hide the truth or a fatal trap.
Facing the unnatural phenomena and unknown creatures in the back room, Conan relied on his keen observation, extraordinary wisdom and never-giving-up belief to find a way out in the fog. Can he solve the puzzle in this alien world, find a way to return to reality, and at the same time uncover the shocking secret hidden in the back room? A reasoning adventure that spans reality and fantasy begins here.
