In a world where shadows have evolved into autonomous beings, players take on the role of a clever and cynical professional shadow-detective. Challenging the conventional nature of things, this character partners with a perplexing shadow who claims to have amnesia and can't remember which person it belongs to. As players unravel a web of deceit involving a quirky cast of characters—each with a motive to hide their shadow’s identity—they engage in a series of investigative challenges, but there's a twist: each decision made alters both the shadow’s personality and the outcome of the story. Navigate moral dilemmas, solve mind-bending puzzles, and piece together fragmented memories in a race against time before shadows take control of their own destinies.