Du Zizong, a girl from an aristocratic college, fell behind in her grades. She couldn't think of anything and planned to commit suicide by jumping off a building. However, she accidentally traveled to an era that had no records for five thousand years. Wow~ This is the legendary fantasy, right? In the country of Shengqing, a certain woman dressed as a man was an eye-opener. Entering an inn, I met a certain emperor and a certain king. I was taken to the palace because I bumped into a certain king. Soon an envoy from a neighboring country took a certain girl back to a certain country and said she was the second princess of that country. The "Second Princess" wanted to go back to the past, so she became a "thief", specializing in stealing books about time and space from the Yushu Garden. Later, she was involved in a conspiracy... And finally became the concubine of a certain emperor. Hum, being both a princess and a concubine, let's see how she plays with ancient times!