Modern Su Wan and her four-year-old daughter Nuo Nuo accidentally time-travel to the Great Qin. The ancestral ancient jade conceals profound mysteries, able to summon through time and space legendary ministers of the ages from later generations. Just as the six states are newly pacified and hidden troubles swarm in Great Qin, Su Wan is exceptionally appointed by Ying Zheng as the female official in charge of books in the Secret Pavilion due to her foresight. Legendary figures like Huo Qubing, Zhuge Liang, and Han Xin descend one after another. The cold emperor and the court officials who strictly observe rules are slowly softened by Nuo Nuo's innocence and purity. The mother and daughter join hands with famous ministers to smooth out crises inside and outside the court. Without palace intrigues or romance, there is only mutual guarding and warm healing, rewriting together the fate of Great Qin destined to perish.