The blue bricks and black tiles reflect Jinling, and the fireworks hide deep feelings. The young writer Jiang Hanqing has been lonely since he was a child. His parents died young and his sister married far away. He only has pen and ink to keep him company with the ancient city. Policewoman Ye Shiling grew up in an orphanage and wears navy blue to guard the fireworks of the world. That year in the alley, he fought to the death with gangsters to save her, and the scar became a mark of their fate.
For more than ten years after that, she relieved his loneliness with gentleness: hot late-night snacks when she stayed up late to write, and his gentle warnings for fear of hurting her stomach; he kept her safe with companionship: hot meals between duties, waiting silently regardless of rain or shine. They are each other's salvation, like two stray cats keeping each other warm. In the name of "family", surrounded by the warmth of relatives and friends, their days have become a warm time by the Qinhuai River.
From a young boy to a calm adult, the morning mist and old streets of Jinling bear witness to their life and death together. The protagonist of Jiang Hanqing's novel is full of concern for her; her police uniform and his writing have already become the background of each other's lives. When the boundaries of "friends" are broken by time, this period of companionship full of fireworks will eventually lead to the sweetest confession.
