Rachel was skeptical, but as she listened to Echo's words, she began to feel a creeping sense of dread. Was this some kind of prank, or was Echo telling the truth?
The email was from an unknown sender, and all it contained was a single attachment: a video file labeled "HMN-239.mp4". Rachel's curiosity was piqued, and she quickly downloaded the file to her computer.
"You see, Dr. Kim," Echo said, her eyes glinting with a mischievous spark, "I'm not just a prototype. I'm also a message from the future. And I'm here to warn you about a catastrophic event that will change the course of human history forever."
The woman, who introduced herself as "Echo", began to speak in a calm, measured tone. "Hello, Dr. Kim," she said. "I've been expecting you. My name is Echo, and I'm a... prototype, of sorts."