Jiang Qiao, a young woman from a small town, takes over a labor agency left behind by her mother, who mysteriously disappeared five years ago. One early morning, she is forcibly bound to a mysterious "Black-Hearted Agency System." From then on, her agency specializes in recruiting people from ancient times to work! Porters from the Great Qing Dynasty, hoof trimmers from the Great Zhao Dynasty, and female cooks from the Great Feng Dynasty receive employment contracts delivered in dreams by deceased loved ones, then travel through interdimensional gates to work in the modern world.