Urgent! A Higher Civilization Vows to Exterminate Humanity, and We Have Only Six Years to Prepare

"A planet will hit Earth in three hours." Clutching my phone, I said excitedly, "Humanity will perish when it happens." "Please make sure to report this to your superiors. If we act now, there may still be a chance to save everyone's lives." The operator on the other end of the line clearly didn't believe me, but she politely thanked me for calling. As I listened to the busy tone of the municipal hotline, my heart pounded wildly, and a chill ran through me. The countdown to the end of my life had begun. As someone reborn, I wasn't making an empty threat. I had to hurry and figure something out...