The novel tells the story of an ordinary girl, Guan Xiaoxuan, who accidentally met Han Yi, the top student in the school, after entering Jiayuan Middle School. The two slowly established a friendship while living at the same table day and night. But with the arrival of the transfer student Ling Xiao, the appearance of the mysterious girl Gu Li revealed the secrets of several people's past many years ago.
In addition, the friends around them have their own experiences and mutual companionship in campus life, witnessing their growth and youth years over more than ten years. They also tell stories about friendship, family affection, and love, as well as stories about forgiveness, tolerance, and understanding between people.
Youth is a past that cannot be returned, and you are a distant place that I cannot reach. Zeng recalled that when he was a teenager, you could always find your shadow in the intertwined background of warm and cold colors.