Jian Mingshu, the daughter of the Jian family, loses her memory after a fall and is saved by her beloved, Lu Shang. They travel to the capital for their studies, where Jian Mingshu uncovers clues about her identity. With Lu Shang's silent support, their bond deepens as they face challenges together, leading to a lasting relationship.

On the eve of her engagement, Ding Dang reunites with her first love, only to discover he is living under a new identity after developing dissociative identity disorder from a failed experiment. Determined to help him heal, she and her friends secretly carry out a plan to guide him into confronting his buried trauma and reclaiming his true self.