In order to obtain a longer life, humans have chosen to collectively change their genes. However, after a long period of fusion and symbiosis with longevity genes, human genes have suffered irreversible damage.
Human beings cannot give birth to life under natural conditions and can only use technological assistance, but embryos cannot develop normally in the outside world.
So human scientists created a fourth gender in addition to male, female and hermaphrodite by extracting the genes of male, female and animals.
Luca was ordered by his master to find the failed fourth-gender experimental subject who was living outside, and followed him into the company that gave birth to life. He found that the fourth-gender experiment was far from being as simple as imagined.
