Framed for the death of his master and left with a ruined heart, Soul has sixty-six days to live. Alone and hunted by his former comrades, he moves through a world of shifting loyalties and silent blades — determined to unravel the conspiracy that has condemned him.

Rain mixes with blood, mercy entangles with vengeance. Soul's journey is one of love, hate, and the fragile search for what it means to have a heart.