Since the birth of human civilization, there have been far too many mysteries. A bizarre murder case reveals a secret forgotten by the world. As the police investigate, they are targeted by a series of strange assassinations. A single chrysanthemum makes the case even more baffling, while the involvement of foreign forces leaves everyone at a loss. Assassins from various countries also make their entrances. As people compete fiercely over a mysterious treasure, what lies behind it all?