The most painful thing in the world is not meeting the wrong person at the right time, but meeting the right person at the wrong time and space. He is the greatest king in Chinese history, commanding the four realms, but she is the softest thought in his heart: she is a modern female college student who returned to the Qing Dynasty inexplicably. She understands him, and even more so his ministers and concubines, because he is her only intersection with this strange era. The love that has been entangled for decades has no betrayal or deception, but it has to be separated.