Wen Jue and Qin Qian are high school students in the 21st century. They have been classmates for 10 years and have an unusually close relationship. During the summer vacation after the college entrance examination, Wen and Qin packed up their equipment and prepared to camp for a few days in the undeveloped Qianfo Mountain, far away from the city, to experience outdoor life. Arriving on the first day, the two set up camp on a strange flat land in the mountains with no grass growing on them, and then fell asleep peacefully.
When they woke up the next day, Wen and Qin found that the scenery around them was different from yesterday. They were confused and prepared to leave. Unexpectedly, the further we walked, the more something went wrong, and finally a dazzling tiger jumped out! Fortunately, a hunter arrived in time and killed the tiger. From the hunter's mouth, Wen and Qin learned that they were now in 974 AD - the period of China's Five Dynasties and Ten Kingdoms, and that the hunter came from the early days of China's liberation, exactly fifty years from the year they arrived! If they want to go back, they have to wait until fifty years later!