[4] This is a youthful story which spans the period of ten years and focuses on friendship, alienation, and one ultimate betrayal that breaks the group of close friends, each going their own way and entering society.

Despite growing up poor, Li Xia works hard and wins a scholarship into Qian Chuan secondary school where she meets Fu Xiaosi and Lu Zhiang, two boys who are the most popular in their batch.

Cheng Qiqi won a singing competition and becomes a famous idol, and Yu Jian heads interstate to realize her dreams of becoming a singer.

However, with the onslaught of adversities: the death of Lu Zhiang's mother and his imprisonment, Cheng Qiqi's betrayal and Li Xia's eventual departure, and Yu Jian's loss; the warm and bright summer starts to fade away.

A span of ten years make them realize that other than memories, nothing can be eternal, but they learnt to love and grow.