Part 4 – Silhouettes and Lies As Chris pulls Hye-jin out of the digital prison of REVERB, a darker truth emerges: someone has already replaced her. A perfect copy — code-named Ghost-Mirror — is walking Seoul’s streets, activating the network she died to shut down. Hye-jin, no longer just a signal but alive and hunted, must face the terrifying reality of being erased not by death — but by duplication. While trust deepens and feelings grow unspoken between them, the lines between memory and manipulation blur. In the end, there can only be one version of her left standing.