Aria, the Apex—the top-tier assassin feared throughout the underground world—returned to New York after completing her final assignment, only to find her long-lost mother Rosalind. Yet her mother, who should have been the heir to the Roche consortium, had been tortured to madness by her Wall Street gold-digging stepfather and scheming adopted sister, imprisoned on a Long Island estate like a dog. To reclaim the Old Money empire that belonged to her mother, Aria tore up the hypocritical prenup, crushed Blackwater security with thunderous force, and went head-to-head with the New York Hellhounds mafia. Faced with the ten-billion-dollar debt trap left by her stepfather, she not only used a black gold card to slap him in the face on the spot, but also summoned Wall Street shadow tycoon and underground godfather Nyx. A bloodbath that swept through New York high society was about to begin!