It tells the story of the twenty-year bond between Lin Wang and Su Nian, from school uniforms to wedding dresses. On a rainy night before the college entrance examination, two teenagers and girls were warming each other up on the rooftop. When the admission notice from a prestigious university arrived, they were forced to separate due to family changes. Ten years later, they met again at the Artificial Intelligence Summit. He was already a technological upstart, and she had become a documentary director. When the truth was as complete as a puzzle, the heat that had been buried by time finally came to light.
