Kai Tang Yanyun

Xie Xuan, a history student at Peking University, accidentally touched half of a stone disk at an archaeological site and accidentally traveled back to the Tianbao period of the Tang Dynasty. By chance, he got acquainted with Zhang Jiuling, the famous Kaiyuan prime minister who should have died long ago. He gained his appreciation and entered his official career. As the Tang Dynasty turns from prosperity to decline, can Xie Xuan, who is familiar with history, turn the tide.