The acquaintance is as light as water, but it is definitely not accidental. The ridiculous emperor who was ignored, the son of an important minister with real power, drank in the wrong body. Did her destination follow her heart or did she have other plans for the overall situation? What is the fatal connection between the battle for the crown prince of a big country and the remote land on the border? Open your eyes and you can see this green pearl shining brightly no matter where you are. A little bit of intrigue and a little bit of scheming, the simple heroine makes the story simple.