"Some encounters are destined, and some farewells are for a better reunion."
Transfer student Lin Zhiyao fled the past with his broken family secrets, but met the equally scarred Zhou Yuan under the sycamore tree at Chengnan High School. He is a cold-blooded academic leader in the eyes of everyone, and after the death of his parents, he has to bear the shackles of being the "son of a murderer" alone; she is a silent top student, struggling to breathe in the shadow of the "daughter of a murderer".
Two teenagers who were owed by fate went from deskmates to confidants, from temptation to deep love. They made a promise to spend time together every year on the snowy night by the river, and exchanged each other's deepest fears in the library garden, but were forced to separate on the eve of the college entrance examination - she said "never liked it", and he turned around and signed up for a local university.
A year later, seven unsent letters and two treasured sycamore leaves revealed the truth. When the train in Beijing started, he stood on the platform and said "I'm waiting for you"; four years later, they exchanged rings in the small apartment, turning the regrets of youth into perfection for the rest of their lives.
This is not a perfect love story, but a story of how two imperfect people find light in each other's gaps.