In an accident, a modern girl Shen Wan travels back to the war-torn Republic of China.
Just a few days after the peaceful days, gunshots broke out in the streets and enemy troops raided Qingxi Town. She panicked and jumped into the icy mountain stream to escape. Fortunately, she survived. From then on, there was no stability in the troubled times.
In order to survive, she took root in a small town and opened a small pharmacy to make a living while secretly helping to deliver information and serve as an underground liaison.
There were countless windy and rainy days and nights, and artillery fire often disturbed the streets. She survived the danger and panic alone, but her heart was always thinking of Gu Huaiyuan who was far away on the battlefield.
Others say that love is the cheapest in troubled times, and you are lucky to be alive.
But Shen Wan insisted on guarding this old alley and guarding the lights in the house.
The smoke never clears, and the lovesickness continues. As long as the war is not over, she will keep waiting, waiting for the smoke to end, and waiting for her sweetheart to return from the rain.