Liang Qingyan's family was in decline, and she stayed with the gentle and considerate Lu Ze, thinking that her life had returned to peace. Until Lu Ze's long-time friend Song Yuanye forcefully broke into her world. His overbearing concern and inexplicable sense of familiarity caused ripples in her calm heart. A dust-laden memory was loosened. It turned out that the person in her forgotten past who was unforgettable to her was none other than Song Yuanye. When the lost love collides with the stability in front of her, Liang Qingyan must retrieve her memory and make the final choice in the misplaced time.