Cosmic Genes

After the third world war, the world plunged into chaos, paranoia, and the stupidity of world leaders brought humanity to the brink of extinction.
When only a few hundred million people remained, a hero was born.
With incredible powers, wisdom, and intelligence, he guided the battered humanity into a new era, the era of the new cultivators.
Hand in hand with science, these new beings managed to lead the world into a new era, crossing the boundaries of the solar system to reach the confines of the universe.
Many centuries later, when even the name of the first hero had succumbed to the passage of time, so much so that it was considered a mere legend, Jun Lindao, who had just come of age, was about to receive the awakening vaccine.
However, before he could join the elite of humans, his physical aptitude test revealed the worst.
Level-nine aptitude, impossible to awaken.
When he was determined to live a pathetic life, a small window seemed to open for him. However, it might not be what he had always dreamed of.