An alien fleet at our doorstep? No, what you see is only the surface.
This is a killing strike that reverses time: the human empire has already conquered the future, and its defeated enemies have transmigrated back to destroy our past.
I am no chosen one. I am Chen Ming, a guardian of the timeline, from a battlefield billions of years in the future.
My mission is not to defeat them, but to protect the history of human civilization before they destroy Earth in the 21st century.
Here, every battle creates a butterfly effect that changes the future, and the consequences of every sacrifice must be calculated.
As the alien duke sneers on the battlefield, and the planets behind me go dark one after another,
I activate the final four-dimensional weapon:
"You think you're attacking a backward civilization?"
"No. You're attacking the absolute line that protects a glorious future."
A friendly tip: this is a different kind of science fiction novel, one that will reveal a different kind of science fiction world.