Lin Nianchu and Su Yuqing were childhood friends, but fate tore them apart for more than a decade. She became a designer in the north, while he became an accountant in the south. Both drifted through the city, with nowhere to call home. A chance work opportunity brings them together again. As they go from estrangement to understanding, they face career crises and family responsibilities side by side. In the end, they choose to return to their Jiangnan hometown, turning their regrets into the courage to stay together and start their lives anew beneath the plane trees. This is a story about time, choices, and finding a place to belong: some partings lead to better reunions, and some turns will eventually bring you face-to-face with an everlasting light in the distance.