In the era of interstellar colonization, the earth has become a distant legend. Under the rule of a loose federation of various human colonies, technology is both a blessing and a shackle. A sudden "Purity Tide" movement, in the name of genetic purity, will tear apart the entire interstellar society.
Eli, a talented engineer who exiled himself due to his conscience, accidentally equipped with ancient phase technology that can rewrite the laws of physics, only to find that the principles for which he devoted everything are being gradually swallowed up. Kane, a former federal hero, was imprisoned because of a genetic test report. In the process of tracing the truth, he was forced to make a choice between revenge and redemption. Zero, a maintenance machine that originally put logic first, was forced to face the ultimate proposition of what is life and what is soul after activating the core of the "Ark" that carries the ultimate hope of civilization.
The three people had never crossed paths, but their destinies were intertwined due to a conspiracy that swept across the stars. Together they must fight against the powerful Federation military, the paranoid "Humanist" crusaders, and their own growing suspicion and fear. In this war that concerns the survival of all "impure" life, they will uncover the buried truth about the history of interstellar colonization, and the answer to where humans - whether they are flesh and blood, mechanical consciousness or genetically modified people - will eventually go.
