Y/N never wanted an arranged marriage—especially not to Marvolo Riddle, the feared and calculating head of a powerful mafia empire. Their union is meant to be a business agreement, a contract signed in strategy rather than affection. Thrown into the heavily guarded Riddle estate, she expects cold stares and constant danger. Instead, she finds herself surrounded by Marvolo’s younger brothers, Tom and Mattheo, and a house full of intimidating associates who seem more comfortable with negotiations and security details than everyday life. Against all expectations, Y/N’s kindness, wit, and refusal to be intimidated begin to change the atmosphere of the mansion. One by one, the people who once viewed her as an outsider become fiercely loyal to her, turning the fortress into an unlikely home. As rival families circle and old grudges threaten the fragile peace, Marvolo discovers that the one person capable of unsettling his carefully controlled world isn’t an enemy—it’s the woman he married for convenience. And when that woman is in danger, everyone in the estate is prepared to stand by her side. In a world built on power and fear, Y/N may become the most influential person in the house without ever raising her voice.