"All the promises made when we were young will be reunited when we grow up."
Zhou Yuan and Shen Zhao have lived next to each other since childhood. There is a century-old ginkgo tree between their backyards.
When they were nine years old, they carved height marks under the tree; when they were twelve years old, they used a compass to leave marks on each other's wrists; when they were fifteen years old, they agreed to attend the same high school.
But on the day after the high school entrance examination, Shen Zhao left without saying goodbye, leaving only ginkgo leaves on the ground that he didn't have time to pick up.
Three years later, on the first day of his senior year of high school, Zhou Yuan bumped into Shen Zhao dragging his suitcase at the back wall of the school.
The other party came back from transferring school with the familiar smell of ginkgo leaf laundry detergent and a light word——
"Zhou Yu'an, the fruit of your tree this year is still so smelly."
"There is an unfinished agreement between them, and an unspoken love."
- Zhou Yu'an thought Shen Zhao had forgotten the promise he made when he was a child, but he didn't know that he kept recording the growth data of the ginkgo tree every year.
- Shen Zhao thought Zhou Yuan had made new friends long ago, but he didn't know that there was a letter locked in his drawer that he had not sent three years ago.
"Youth is a long process of photosynthesis, and they are each other's only nutrients."
- When Zhou Yuan deliberately knocked over Shen Zhao's water bottle on the basketball court,
- When Shen Zhao inserted the secretly taken photos of Zhou Yuan into his biology book after studying in the evening,
- When the ginkgo tree shed its leaves again, covering the road they walked side by side——
Intention: When we learn to use scars to measure growth, we discover that some bonds are deeper than the roots of the tree.