After Jiang Xiaobai recovers his memories, Tong Li struggles to confront him. Both grapple with long-buried truths spanning a decade—centering on their youthful dedication to the band September, the complex love triangle involving Jiang Xiaobai, Mu Xiyu, and Tong Li, and the heartbreaking events that united them and culminated in a tragic incident before Tong Li's departure to America. As they come to terms with their shared history, can Jiang Xiaobai and Tong Li find the strength to embrace their past and forge a future together?