A folding fan changed the fate of two people. Lu Minshu was sucked into the space-time tunnel by the folding fan and circulated between two spaces. Ye Xiaoyun, who met her in the Ming Dynasty, was also accidentally involved in the time-travel turmoil. What happened in each dynasty made them unbelievable and gave them a headache. The history brought by the folding fan had no connection with the real history, which made Lu Minshu unable to predict what would happen next. The folding fan always appears after they end their journey, taking them to another time and space. After the journey to the Qing Dynasty, they were brought back to the Ming Dynasty by the folding fan again and embarked on the final journey of finding the truth. What exactly is a folding fan? How can we return to our own 21st century? If I really find a way to go back, can I let go of all this...