After narrowly escaping a massacre, Qiu Ruoran, the last surviving heir of the Qiu Family, transforms into Jiang Ruruo to infiltrate the Xiao Family as a secretary to seek revenge. To rescue her brother Muran, she accidentally gets entangled with Gu Yanting, the hidden foster son of a former warlord, in a "fake marriage". As they join forces to thwart Xiao Li's cunning schemes at every turn, Jiang Ruruo navigates a web of dark conspiracies and hidden truths, and ultimately uncovers the shocking truth…