Ten years later, Lin Weixi returned to his hometown for work. In her memory, the locust trees in the alley remained the same, but Shen Zhi, her childhood sweetheart who had sworn to protect her, became strange and alienated. He is no longer the young man with the sparkle in his eyes, but the owner of a car repair shop with steady eyes and cold demeanor. A sudden storm forced her to ask him for help and fatefully stayed at his home. On a rainy night when the power was out, candlelight flickered and old shadows were mottled. What stood between the two was not only ten years of silence, but also a cold heart wall that needed to be broken. Is this reunion the end of regret or the beginning of a new story?