When the wind in Linchuan County blew through the windows of the A University Literary Club, Su Wan heard Lin Yanzhou say "We are from the same hometown" for the first time - at that time, he was a gentle senior in the Department of Literature, and she was a freshman in the Department of Chinese Language and Literature. She rushed to Shenzhen with a promise, but stayed in the province with a stable offer from a state-owned enterprise, and finally married the "suitable" Chen Jingming. After two years of marriage, nothing happened. When Su Wan hugged her son Su Xiaoyu to sign the divorce agreement, she thought that the "old city cloud" in her youth had long since dissipated, but she reunited with Lin Yanzhou in her hometown bookstore - he had lost his youthfulness, but still had the light in his eyes. After learning about her situation, he did not say a word of blame, but silently helped her pick up Xiaoyu from school and accompany the elderly for follow-up consultations. When she escaped because of her status as a "divorced mother," she said firmly, "I love you, and Xiaoyu is also my family." Chen Jingming's entanglement, external doubts, and inner shackles could not stop Lin Yanzhou from running across thousands of miles. From the promise of the seaside in Shenzhen to the approval of his hometown in Linchuan, Xiaoyu's words "I want Uncle Lin to be his father" finally made Su Wan put aside his worries. It turns out that some love will not be defeated by time, just like the clouds of the old city will always float back to the sky. Those who have missed it will eventually hold each other's hands again at the right time, and continue the unfinished poems into a lifelong story.