The heroine Zhang Tan is a complete otaku in modern times. Because of a meteor shower, yes, that's right, it was because of a meteor shower that she transformed into the concubine of the Prime Minister's Palace of Bahrain. As for the frame-up by the step-mother and step-sister, and the indifference of the biological father, this is all trivial. See how this lady came to dominate the Three Kingdoms in another world...