Doomsday queen Xie Shanshan transmigrates into the true eldest daughter of a ducal mansion who was left outside, returning to the Duke of Ningguo Mansion armed with superpowers and a spatial dimension. Facing the fake daughter, the harsh mistress, and the calculations of the Duke of Zhenguo Mansion, she refuses to endure, yield, or take a loss, forcefully reclaiming her identity and seeking justice all the way. Along the path, she encounters the sickly, noble young genius Pei Ju, gets captivated by his talent and beauty, and insists on doting on and protecting him. One is radiant and strong, the other cold and restrained—a sweet and satisfying story amidst the storm of true and fake daughters.