She’s not promised to a man—she’s signed over to a syndicate.
When Sera Moretti’s father vanishes, the last thing he leaves behind is her name… on a blood oath.
Lucien De Luca collects debts with silence and steel. He doesn’t ask for Sera’s hand—he takes it, sealing their marriage as a public warning: touch his wife and you die. Inside the De Luca manor, protection feels like a prison, and every locked door hides another secret.
Then the bodies start appearing—burned clean, marked with a ritual signature meant for Lucien. Someone from his past is carving a path through his empire, and Sera is the doorway they plan to break.
To survive, Sera must decide what she’s willing to become: the obedient bride in a gilded cage… or the queen who learns the rules, finds the traitors, and turns a forced vow into a weapon. Because in a world built on loyalty and revenge, love isn’t safe—it’s leverage.
Sinful Oath is a dark mafia possession romance packed with forced marriage, enemies-to-heat tension, power games, and high-stakes suspense.