A boy named Rudo lived in the slums of the Heavenly Firmament — a flying city where inequality reigns and people are discarded like unwanted trash. But then he was unjustly accused of a crime and thrown into the Abyss — a huge pit where the deities dump all the "filth".
However, the Abyss turned out to be more than just a dump: it is inhabited by people and monsters made from animated garbage. Rudo discovers within himself the power to turn any object into a weapon and joins the ranks of the Cleaners — an organization dedicated to eliminating trash creatures. Now Rudo wants to find the murderer of his dear one at all costs, return to the surface, and take revenge on his tormentors.
To learn how to find the creator of the chokers, one must first catch the all-knowing informant Kuro. After a fierce chase with the looters, the Cleaners find themselves in forbidden jungles, where they are met by an unprecedented humanoid trash creature...