Hu Hui is a second-generation time traveler. Although she was born in the Ming Dynasty, she has a scientist mother from six hundred years later. The city of Nanjing was destroyed, and Emperor Jianwen disappeared mysteriously in a fire, his life and death unknown. Three charred remains under the ruins of the palace, an invisible secret passage dug five feet into the ground, a victim who pretended to be dead twice... All the mysteries were solved by him one by one. Hu Hui passed many tests and finally won Zhu Di's trust. Zhu Di gave him a confidential mission: to find the whereabouts of Zhu Yunwen!
