Lin Yimu and Xu Zhiguang were sweet lovers in college. Their youth was filled with memories of paper airplanes, guitar sounds and sunsets. However, fate separated them, and there was no news from them for ten years. When they met again, it was a fleeting glance in the sea of people - he had lost his youthful spirit, and she had hidden her youthful throbbing. The phrase "If you never forget it, there will be echoes" became a thorn in the heart, and the silence after the reunion was more painful than the stranger. When the past is ups and downs, can they regain the courage scattered in time, or will they become an old dream ten miles away in the spring breeze?
