It was many years later that Xia Muyan and Su Li discovered that the street lamp at the door held too many memories of them. At every moment, they knew that Xia Muyan and Su Li were neighbors for several years. They had gone through elementary school, junior high school, and high school. Qiao Yu, Xia Muyan Suli's good friend, the three of them were inseparable. They thought life would be as usual, until Yun Yi appeared, the four people's youth memories became more profound, and they were looking for themselves and their dreams in the best time.