Zhou Jingni and Shen Yi, the childhood sweethearts of the courtyard, were top students who refused to admit defeat when they were young, but they secretly harbored each other in their hearts. An accident occurred between the two of them. Shen Yi went to England, and Zhou Jingni went to Sydney. The thousands of miles of distance and time difference put their young love on hold. Over the long years, they have experienced misunderstandings, separation and forbearance, and their love has been pulled repeatedly over time, but they have not dared to express it openly. Those unspoken thoughts turned into love letters sent to the non-existent twenty-fifth time zone. Reunited after many years, the past regrets were solved one by one, and the long-awaited deep love was finally revealed. Across mountains, seas and time differences, going round and round, the heartbeat of my youth finally came to a successful end in a long time.
