"Internet love in time and space". Qian Xiaoyu, a city girl, and Huo Xun, a cold-faced official, communicate with each other across time and space with the help of a mysterious letter.
Through dialogue across time and space, the game between free will and determined destiny is explored. In the end, it is revealed that what really changes destiny is not the ability to predict the future, but the courage to still choose love and trust in desperate situations.
