The work tells the warm story between Su Wan and Lu Shiyan. Su Wan devoted herself to exploring urban culture, and Lu Shiyan accompanied her. The two experienced many good times together. They promoted the new book by the June lotus pond, held a ginkgo forest sharing session, received letters from readers and were moved by letters. They also jointly built a "story wall" in the old alley. Su Wan completed the special article "Protection and Inheritance of Old Urban Neighborhoods". In the process, they felt the vitality of the city corners and the weight of love and companionship. The second volume of the story ends when the ginkgo trees fall in autumn, and they agree to explore the old alley in winter together.