Lieutenant Ech Ni is a double agent serving the artist rebel faction in the City of Art, a place dominated by the AI ​​corporation that cultivates human artists in cages to produce art. After years of undercover work in the art crime prevention department of the Human Section 84, where owning your creation is a crime and everything belongs to the AI corporation, Ech Ni finally reaches the information about Clover, the archive core that stores the stolen artworks of innocent artists, opens up a ray of hope for liberating.