Alien Cleanup Plan

The gun is on the left, the cannon is on the right, and human civilization is behind us. Kill those alien bastards. Story introduction: The earth was born 4.6 Billion years ago, and countless civilizations were born, but only five civilizations became interstellar civilizations. The first three civilizations cannot be verified because the time is too long. In 2086, with the rise of habitability on Mars, when a Table Mountain was excavated, people discovered the remains of a pre-civilization that was 13,000 years ago. They recorded what their civilization had done in words and pictures. They hollowed out all the energy crystals produced on the earth at the beginning of the universe explosion and built warp speed spaceships to implement a crazy plan. That is to sow civilization. They will sow their modified seeds on all habitable stars in the universe. "They have been setting off for 30,000 years, and today's Milky Way galaxy is the seed they sowed." "They are enemies, not friends." "Yes, enemy."