Yuma, an amnesiac detective-in-training, and Shinigami, the spirit haunting him, tackle unsolved mysteries in a strange city caged by unending rain.
A city of rain is gripped by innumerable unsolved mysteries, under the complete control of a megacorporation. Master Detectives from around the world, each possessing unique powers, must rise to the challenge of uncovering the truth.
With Shinigami by his side, Yuma joins the investigation as a trainee of the detective agency. Travel freely within the fully 3D environment of the city to gather evidence and testimonies.
As the investigation progresses, a realm known as the Mystery Labyrinth will appear, creating a path toward the truth. Once inside however, the mysteries shrouding the case materialise as gimmicks and traps, lying in wait to consume Yuma. The rules of reality don't apply here: delve into the ever-changing Mystery Labyrinth and get to heart of the case.
But that's not all! Monstrous Mystery Phantoms will do whatever it takes to prevent Yuma from reaching the truth. Dodge their barrage of lies and slash the contradictions to pieces with the Solution Blade!