Mysterious is set in a world where creating mysteries and theories are prominent. Characters aren’t who you assume they are and the world has a Sherlock Holmes theme. With characters investigating even the smallest of crimes and partaking in mundane living, a larger mystery is just around the corner – the notorious Black Organization is involved in a furtive war with the FBI and CIA. With the syndicates interest in immortality, the Boss’ unknown status, and their requirement for absolute secrecy, do you think you can survive and solve this mystery? Based on the Detective Conan (Case Closed) series.