When the microscopic world discovers that it is not the only one, an awakening that subverts cognition begins.
In the peaceful microscopic world, energy collector Xian discovered an abnormal life form - "Source". This transparent sphere can swallow energy, rewrite the laws of physics, and even transmit images from the "outside world". Its existence shakes the foundation of the entire micro-civilization: If the world has boundaries, what is beyond the boundaries?
Elder Shell, a scientist whose membrane body was alienated by the "source", put forward a subversive hypothesis: their universe may be just a speck of dust in the eyes of a greater being. This theory quickly divided society: the explorers were eager to follow the "source" to find the truth, while the conservatives were determined to maintain the original order.
When "Source" showed the ability to cross dimensions, Elder Xian and Shell embarked on an expedition to the edge of the world. They cross DNA mountains and ion waterfalls, encounter ambushes from virus hordes, and finally glimpse the breathtaking truth in the cracks of the border - the microscope of the human laboratory is pointed at their world.
At the same time, Lin Mo, a biologist in the macroscopic world, discovered that the microbial community in the petri dish had an unusually complex structural evolution. When she tried to establish communication with these "samples", the two worlds faced an ultimate question at the same time: If microscopic civilization is just an experiment, then what are humans?