Huang Yingzi, Jiang Yi and other six people grew up together in Hangzhou Tiancheng. An accident in the year of the college entrance examination caused the "Hangzhou Tiancheng F6" who had agreed to stay together to go their separate ways. As time went by, everyone worked hard and grew up in the adult world. Twelve years later, when they were 30 years old, they received a message from their friend Guan Chao that he was about to get married. Under the arrangement of Huang Yingzi, the old friends reunited at the wedding, and the past of youth slowly unfolded. Only then did they find that the feelings that sprouted at the age of seventeen had never dissipated, and there were many misunderstandings behind the accident... In fact, the friendship that stayed in the past has never ended, and a story about youth and growth is being read.