[DeepL Translation - needs review] Volume 1 Introduction: In a slum where the descendants of criminals are gathered, Ludo lives by picking up trash, despite discrimination. One day, however, he is accused of a crime he does not remember and thrown into the "abyss" that everyone fears. In the abyss, Ludo meets Engine, a "cleaner," and catches a glimpse of the truth of the world, and develops the ability to give life to things and draw out their power. All in order to change the "shitty world"...
