Gachiakuta

Thrown into a junkyard nightmare, a scavenger wields reclaimed weapons to hunt down his father's killer.

In the glittering metropolis of Gachiakuta, the affluent toss their refuse without a second thought, treating waste as a commodity for the destitute. Rudo, a scrappy scavenger from the slums, spends his days salvaging discarded treasures before they vanish into the colossal landfill known as the Pit—a sprawling abyss that doubles as the city’s ultimate prison. When his adoptive father Regto is brutally slain by an unknown assailant, the authorities pin the murder on Rudo and cast him into the Pit’s unforgiving maw. Awakening amid towering heaps of rot and rust, he discovers the Pit teems with grotesque Trash Beasts—monsters birthed from the very junk the rich discard. The toxic haze and relentless predators threaten to crush his will, but salvation arrives in the form of Enjin, a veteran Cleaner who wields a Vital Instrument—a weapon forged from reclaimed waste that can pierce the beasts’ hardened shells. Impressed by Rudo’s tenacity, Enjin gifts him his own Vital Instrument, binding the boy to the elite squad of Cleaners tasked with purging the Pit’s horrors. Now armed with a weapon and a burning desire for justice, Rudo joins the Cleaners, navigating treacherous corridors of refuse while hunting clues about Regto’s murder. Each battle brings him closer to unraveling the conspiracy that shackles the Pit and to the ultimate goal of escaping the landfill’s clutches to avenge his father and expose the city’s rotten heart.

A shounen action-fantasy where a slum-dwelling teen is framed for his adoptive father's murder and thrown into a monster-infested garbage abyss. Expect regular fantasy battles, some bloody moments, and themes of injustice and class disparity rather than graphic horror or sexual content.