It follows the mysterious and emotional journey of Tang Yi Xun and his lover, Ye Hai Tang. When Hai Tang vanishes without warning, Yi Xun discovers a letter waiting in a mailbox. He writes back and realizes they are not only separated by distance but also by time. Across twelve letters spanning thirty-five years, their connection endures as they search for truth and hope, weaving together love, longing, and the challenges of fate.
(Source: Viki; edited by MyDramaList)
