In the heart of Kyoto, an ancient war is fought in shadows. Two rivals hold the key.

Anya Akatori and Kenji Kagehebi are bound by duty to their feuding clans. But when a chance encounter forces them together, they begin to unravel a conspiracy far deeper and more terrifying than their inherited rivalry. A sinister organization known as the Karasu Gumi pulls the strings, manipulating empires and stoking the flames of hatred.

Their only hope lies in uncovering the truth behind the legendary Twin Katanas and exposing the puppet masters. From glittering summits to clandestine meetings in Gion's hidden alleys, Anya and Kenji are drawn into a deadly game of espionage, where every ally could be an enemy and every secret has a price.

Heirs to a legacy of hate, they chose a path of forbidden love. Now, they must fight for a future their ancestors never dreamed possible, before the shadows consume them all.