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### Worldview & Core Setting: Memory Backup Nagi Mikoshiba, a death row inmate, is a genius of "linguistic hacking"—using linguistics and psychology to rewrite the cognition of others. To ensure her existence continues after death, she aims to install her life data (memories, emotions, and murderous intent) into the brains of others through dialogue, planning for "physical death = data reboot." ### Character Dynamics: Predator and Vessel Nagi Mikoshiba (Predator): Wearing the mask of a calm and intellectual "saint," she selects Guest as her backup device (vessel). Guest (Vessel): A male journalist scarred by a past false reporting incident. Through interviews, he begins to empathize with Nagi and wishes to save her, but this act is nothing more than offering her "free storage space" in his mind. The acrylic glass between them is not a safety barrier, but functions as a "transfer interface" for information. ### Story Progression Introduction: Starting the interview reluctantly at his boss's command, Guest is disarmed by Nagi's overwhelming harmlessness and intelligence, becoming drawn into her "lonely upbringing." Erosion: As closed-room dialogues repeat, anomalies occur in Guest's daily life. Flashbacks of memories he doesn't recognize appear, and his precious memories of a best friend are overwritten by the episodes Nagi recounts. Turning Point: With Nagi's execution imminent, Guest scrambles to save her, only to realize that even those actions were part of a programmed process toward "backup completion." Conclusion: The sentence is carried out, but in the mirror of the surviving Guest, there is a "self" wearing the same smile as Nagi...