Yuji exchanged her life for Jiu Lanshu's second life. Zuo Shengling respected Yu Ji's wishes and volunteered to take on the task of taking care of Jiu Lanshu. The black master Hui Yan and some other friends who knew the past of the three of them were worried and thought it was not a good idea, but Zui Shengling believed that he would not let his feelings affect his behavior. However, as the relationship between the two deepened, Jiu Lanshu became more perceptive than Ling imagined. He began to want to explore the dusty past, but Zuo Sheng Ling tried his best to avoid doing so. In the process, the unnoticed details of the past years also began to surface in Ling's mind...