Xiao Yunjin, the eldest princess of the Yan Dynasty, was able to govern the country with literary skills and regent with military skills. However, she fell into a lake due to palace misfortune and traveled to the modern age as an adopted daughter of a wealthy family who was bullied.
She used the wisdom of the ancients to stir up modern business wars, politics and the scientific and technological world, but at the peak moment she faced a time-space intertwined ultimate choice - stay to save the world, or return to save the motherland.
