In a tale that spans nearly two decades, a girl meets a mysterious boy at the age of eight. Their bond deepens with each passing year, until he inexplicably disappears when she turns eighteen. Every year after, she returns to the place where they shared their happiest moments, only to find nothing but echoes of the past. On her twenty-fifth birthday, she discovers a long-lost letter that holds the key to their entwined fates, unraveling a story of love, loss, and the enduring power of memories