The Qingwa Lane in Jiangnan soaked by the plum rain is the memory of his hometown that architect Lin Yanzhi has buried for ten years. In order to take care of his elderly grandmother, he gave up his career abroad and returned home. He reunited with his childhood friend Su Wan, who now runs a fabric shop at the end of an alley. The green tiles, rainscapes and Jiangnan landscapes embroidered by his fingertips are full of nostalgia for the old times.
After returning home, Lin Yanzhi devoted himself to the renovation of old buildings with his professional skills. Starting from rescuing the leaky Fuxing Teahouse, he tried to protect this old alley that carried the smoke and smoke. However, the news of demolition and construction of a commercial center suddenly came, and the fate of Qingwa Alley was in danger. Lin Yanzhi and Su Wan joined hands to mobilize residents to sign a joint letter, while also rushing to the Cultural Relics Bureau and Planning Bureau to save the old alley.
In the process of fighting against the demolition, the feelings hidden in their youth gradually became clear. The two not only had to protect the blue bricks and black tiles of Qingwa Lane, but also the tender love that lasted for ten years and finally reunited, so that the fireworks of the old lane and each other's feelings would last forever in the misty rain in the south of the Yangtze River.
