With lingering fatigue, Lin Wanxing escaped the noisy and crowded city and returned to the small town in Jiangnan where her grandmother once lived. She thought that there was only the silence of the bluestone road and the shade of the old locust trees, but she never thought that the fireworks market on the old street every weekend evening would become a good medicine to heal her. At the sugar painting stall at the end of the market, she met Shen Zhinian, a man of few words but with superb skills. The warmth of time is hidden in his sugar paintings, and the light and shadow of fireworks remain under her lens. A story about companionship and redemption slowly begins in the rising smoke of fireworks.