Yang Yuxiao, a top student in the history department, and three friends - logic expert Hu Li, chemistry genius Zhang Zhiqing, and cooking expert Wang Yuexi - accidentally traveled to the Tianbao period while experiencing the immersive script-killing "The Secret of Tang Que" in the museum.
The four people became "black households" and were mistaken for Yang Guifei's distant niece because of an antique jade pendant.
The girls who were unwilling to be trapped in the dilemma showed their talents: Hu Li used modern game thinking to become the behind-the-scenes adviser that Prince Li Heng relied on; Zhang Zhiqing used saltpeter, sulfur and other chemical knowledge to perform "wonderful methods", and was awarded the title of "Miaofa Master", but also attracted jealousy; Wang Yuexi relied on secret hot pot base ingredients and advanced business concepts to spread restaurants all over Chang'an West City, accumulating huge wealth.
Just as they gained a foothold in prosperity and crisis, the fragments of the broken ancient mirror, which traveled through the medium, began to scatter in the black market and deep palace of Chang'an. As a "key", the jade seal will have a strange resonance with the fragments, pointing directly to the way home. Recruiting concubines, relying on the prince, hostile to the powerful, and paying attention to the emperor, they negotiated between the palace and the market, using modern wisdom to resolve the crisis.
The clue ultimately points to the ancient altar of Zhongnan Mountain. On a full moon night, the jade seal and the pieced mirror fragments bloom into pillars of light reaching the sky, and a mechanical sound sounds: "Full of energy, do you want to return?"
Staying is the new life and bond of deep cultivation;
Returning is the hometown and unknown daily life that the soul cherishes.
The four girls stand in the thousand-year light pillar, facing the ultimate choice.
