On the day the real daughter returned home, Su Nianci was asked by the Lin family to sign a statement: She had no de facto adoption relationship with the Lin family. Household registration, old photos, jade bracelets, and names of eighteen years have all become evidence of others overnight. Instead of accepting her fate, she joined the criminal investigation team as a temporary co-investigator. From the corpse of the woman in the red dress, old case files and the Blue Ocean Rehabilitation Center, she found out the cause of death of her biological parents bit by bit, and also found out her own name. Everyone said that she was just a "fake daughter", but Lu Yu pushed the certificate on the table: she was a co-investigator in this case.
