The Wolf’s Path: Ronin is an upcoming grimdark fantasy novel inspired by the Sengoku Jidai period.
From the back cover:
As the Izumo Empire falls into ruin, Takeshi the Wolf and his ronin band roam the shattered provinces, blades for hire with no master and no mercy. When he slays a priest of the Black Jade Circle, a cult of forgotten horrors, Takeshi awakens forces darker than any he has faced.
Pursued by death and despair, he finds an unexpected ally in Prince Zasuro, a leader whose dreams of unity may not survive the coming storm. Together, they must stand against the darkness—or be consumed by it.
Robert Nakamura 