Earth Calendar, year 4460.
Within the Pan-Human Federation's territory, 29.7 light-years from the Kepler-452 Stellar System.
It was a single-star system whose primary was a relatively small red dwarf.
Although it was called a stellar system, it contained no planets at all, only small celestial bodies such as asteroids.
It was a true loner.
There were actually many systems like this in the universe.
Under normal circumstances, no civilization would visit them.
This one was no exception. Although it lay near the Kepler-452 Stellar System, within what could be considered the Pan-Human Federation's capital region, no warship had entered the reach of its stellar wind in over a thousand years.
In fact, because it was so small, even the Human Federation Megastructure Engineering Department had skipped it when deploying Dyson Spheres.
But that day, the arrival of a fleet shattered the stellar system's long-standing tranquility.
It was an enormous fleet composed entirely of megastructures.
More than five hundred [Star Pickers] and one [Kuafu].
The Central Research Institute of the Human Federation Academy of Sciences.
The academicians watched the images in the Holographic Projection with excitement and apprehension.
On the display was the red dwarf, surrounded by hundreds of megastructures in layer upon layer.
This was the Human Federation's first Star Capture Experiment.
Previously, the Academy of Sciences had coordinated the [Star Pickers] and [Kuafu] to pack more than a hundred planets of various sizes into the micro-universe.
The entrance to the Klein bottle did not look particularly large, measuring only a little over a hundred kilometers across.
But it was, after all, the projection of a four-dimensional structure into three-dimensional space.
The immense scale of its true structure could not be observed with the naked eye.
According to the Academy of Sciences' calculations, it could easily swallow not just