Ling Feifei and her friends were rowing in the park lake. After losing their way, they went ashore and found that they had traveled to the Tang Dynasty. They met several bad men on the way and tried to surround them. At this time, Li Shimin came to rescue them. The leader of the bad men had very extraordinary martial arts. They and Li Shimin fled to the lake and jumped into the lake. Li Shimin came to the modern world. . . . . .