The girl's name is Xiao An, and she and a boy named Mingzhe were childhood playmates. They spent a beautiful and innocent childhood in the town where they were born, until the girl moved away. When she thought that everything about the town was about to leave her; when she thought that the sycamore trees in the town and the friends in the town were about to become a dream, Mingzhe appeared in front of him. And continued to grow up with her until they were admitted to the same university together. Xiao An met a boy named Wu Tong in college. She thought he was her love and simply threw herself into this love. Little did she know that Mingzhe was the boy who had always liked her and the person who had always loved her sincerely. It wasn't until Mingzhe had an accident and she understood that what Wu Tong gave was not true love that she truly felt the heartache of loss, so she dropped out of school and came to Jiangnan alone, carrying the dream of a small town and the memories under the sycamore tree to Jiangnan to continue another dream.