In the giant city "Nova City" where neon lights and acid rain intersect, the low-level data broker "Zero" barely makes a living by relying on his unique skills of hacking into neural chips. He wanders in the shadows of the city, thinking he is just a rat in the gutter. However, a seemingly simple task made him accidentally come into contact with his tampered memory. Five years of blank time, an implanted life, and a forgotten identity - he is not the unknown "Zero", but "Chen O'Lion", the leader of the resistance organization "Aegis" who ignited the fire of revolution and fought against the technology giant "Omniscient Technology" five years ago. When the sleeping lion opens his eyes, what he wants to do is not only to find himself, but also to take back the entire world enslaved by technology.
