Vivian clawed her way out of the docks through bare-knuckle fighting, earning a fearsome reputation before learning her sister perished suspiciously within the William ancestral manor. Determined to unearth the truth, she assumes a docile noblewoman's persona to marry Duke Damian, stepping into a den of scheming aristocrats as stepmother to his neglected twins. Vicious relatives target her immediately, attempting to frame her through poisoned medicinal draughts and domestic sabotage.
Refusing to play the fragile victim, Vivian uses street cunning and martial dominance to purge corrupt staff and train the children to fight back. As she falls for Damian's protective warmth, she must unmask the murderers lurking in the estate before their lethal venom strikes again.
