After Time Travel, I Will Deal with the Time Travel Girl for the Emperor!

Chu Yun went to the beach with her boyfriend and her best friend. While riding in the boat, she was accidentally pushed into the water by the couple. When she was about to swim up, a stone fell down and she fainted. When she woke up, she found that she had traveled through time... The emperor also traveled through time and discovered that she had traveled through time, and was ready to join forces with her to unify the world...