Seventeen-year-old Su Nian and Cheng Yan planted their first love in a note in the high school classroom. One is taciturn but gentle, the other is bright and brave. They spend their youth with each other with their purest hearts. However, after the college entrance examination, the distance between the south and the north, the contrast in family background, and the divergence of dreams made this love gradually reveal cracks in the tearing of reality. They worked hard and struggled, but finally chose to let go in the last hug at the airport. Ten years later, Cheng Yan's wedding invitation was mailed to Su Nian. She went to the appointment and looked at him with a smile amidst the applause of blessing. At that moment they finally understood - some people come into life not to possess, but to light up each other's path. When love reaches its end, letting go is the best fulfillment.
