Whenever people look up at the starry sky, they can't help but think about how small they really are.

Compared with the entire universe, the scope of human activities is almost negligible, and all the achievements worthy of praise seem to be insignificant, like a grain of sand falling into the ocean, completely disturbing the trajectory of the universe.

Even the best cosmologists can only guess what the universe is like through various scientific signs, and the study of parallel universes is also the focus of many people's research, and people are eager to know whether the universe they live in is unique and what it is like.

Cosmology was born in the 17th century, with the help of telescopes, people first saw the magnificence of the universe, and later, the laws of the celestial bodies were no longer mysterious as magic, and they began to try to unravel the mystery of the universe through calculations.

It wasn't until many years later that people discovered that one of the countless speculations about the universe was truly true, that the universe we live in is indeed not the only universe that exists......

By far the most important theory of the origin of the universe is the "Expansion of the Universe Theory", which is a major improvement on the Big Bang theory, in which the universe we live in is just one of many universes that float like bubbles in the infinite bubble universe.

At any time, new universes will be created, and at the same time, there will be universes that will be destroyed, and it is even speculated that a parallel universe is suspended above our heads, which may be less than a millimeter apart, but it cannot be touched.

Later, it was discovered that this scientific hypothesis was also true, and that there was indeed a parallel universe, right next to the universe we live in.

It and the universe we live in are like cars driving in the upper and lower passages of an overpass at the same time, in the same time system.

There is a planet that is similar to Earth, and even the history is similar, and it also gave rise to human beings.

At the same time, in these different universes, things will develop with different results, and the extinct species in our universe are constantly evolving and growing in another universe, resulting in the creation of another way of life.

Two universes that are parallel to each other neither coincide nor intersect, although sometimes through some accidental events, the two universes can perceive each other's existence, but generally speaking, they still do not interact with each other.

The story takes place in the parallel universe that leads to an unknown fork in the road......