At the age of seventeen, Su Xiao's world was full of sunshine.
Until she met Lu Shen, the young man who always wrote poems next to physics questions but used indifference as a shield.
He is number one in grade, a competitive genius, and the only "problem student" in the class whose parents are permanently absent.
A desk clearly demarcates the boundaries between He and Han; a lemon candy allows sour thoughts to ferment quietly.
He ran with her through the 1,500-meter silent playground and wrote notes on the edge of the test paper that only she could understand. But he was also the first to push her back to a "safe distance" when rumors spread.
He said: "Su Xiao, you are light and should not shine into the mud."
So on the night after the college entrance examination, he left behind an unopened box of lemon candies and a competition book full of comments, and completely disappeared into the sea of people.
Like a gust of wind blowing through the cracks of youth, leaving only a long, bone-gnawing acid.
Five years later, Su Xiao became a reporter who calmly wrote about love in the urban column.
But in an exclusive interview, she came across the name she had written deep in her diary - Lu Shen.
White coat, gold mirror, cutting-edge academic, dignified and distant.
He looked across the crowd, his eyes as quiet as a deep pool, as if he had never known her.
Until she turned around, she heard the crisp sound of the glass breaking behind her.
Until he sent only one message late at night:
"Is the sugar still sour? This time, can I apply for... A different answer?"