After a car accident, Su Wanxing was gravely injured and clung to life. Outside the emergency room, her mother, Lin Wan, tearfully revealed a secret kept hidden for eighteen years: Su Wanxing was the biological daughter of Lu Chenyuan, the richest man in Lin City. Lu Shiyan, the boy who had shared her unspoken love for three years and promised to make their relationship public once they got into Huazhong University, became her brother in the eyes of everyone overnight. The boy who had once looked at her with nothing but affection suddenly grew restrained and distant, forcing her back into the role of a friend.
Everyone thought their youthful love was doomed to go nowhere, until the truth gradually came to light: Lu Shiyan was not Lu Chenyuan's biological son. There was no blood tie between them, but rumors from the past and the previous generation's twenty years of love and resentment still stood in their way. From one unforgettable glance beneath the plane trees in high school to ten years spent overcoming one obstacle after another, after half a lifetime of missed chances, they finally found their happy ending.