Welcome to Otomo City, where freedom and justice have withered away to mere bones, and the conspiracy reigns supreme both day and night. Be wary of the Skull Man, a literal Grim Reaper whose bony smirk signals gruesome chaos and death, even to the monstrous mutants lurking in the city's underworld! Joined by photographer Kiriko Mamiya, journalist Minagami Hayato delves into the investigation of a peculiar murder, forced to trail the ultimate predator through a decaying, putrid city. Corruption runs deep and murky, as do the sins of the ruling class, while an unearthed secret so horrific that the entire city has become a tomb. In this nightmarish necropolis where nothing is as it seems, the only retribution appears in the form of a Death's-Head, come to life seeking vengeance.