In a hidden world stitched together by secrets, shadows, and unspoken wars, Elena Raventhorn walks into a life she was never supposed to find. Raised in the underworld but trained like a ghost, she joins a covert organization known only to those who survive it-Sinister Flame. Thrown into chaos, betrayal, and blood-bound missions, Elena must earn her place alongside Crew 67-where loyalty is rare and emotions are liabilities. But nothing could prepare her for them-the rival crew of flawless, cold-blooded operatives who move like gods of ruin. Among them, one pair of eyes sees through her mask. One voice speaks to the storm within her. And when the world begins to burn beneath their feet, he tells her: "You're my first sin... and my last salvation, Eve." A story of fire and frost. Of bullets and secrets. Of the girl who wasn't meant to belong... and the man who would break the code to keep her.