Ten years later, documentary writer Lin Zhi returns to Jiangzhou. As the plane tree leaves fall, she walks that road again, returning to her senior year of high school: the days when she went from bickering to friendship with Gu Yu, a brilliant but aloof genius, and was quietly protected by Lu Xingchen, a taciturn top student. They dreamed of the future, struggled with reality, and thrilled at the first stirrings of love, yet in the end, youth left them with deep regrets. Now, at last, they meet at the end of Plane Tree Road. They exchange a smile and finally make peace with their seventeen-year-old selves.
