An ecological detective story told amid a backdrop of fantasy and science-fiction. PUBLICATION IN 3 VOLUMES - COMPLETED WORK. When a mysterious giant of a man arrives in a vast steampunk megalopolis, death walks beside him, leaving a trail of corpses in their wake. It's up to a dysfunctional yet dogged police investigator to find the strange colossus and stop him before the bodies pile even higher... But soon the truth is discovered that this case...

Welcome to the future, where the norms are vast bio-constructed cities, air toxic enough to force citizens to wear oxygen masks, and crime so severe that the cops drive tanks! When a mysterious winged girl with the power to cleanse the poisoned air is kidnapped by the villainous Buaku, police mini-tank commander Leona Ozaki, her tank Bonaparte, and her lovesick partner Al must confront the arch-criminal and his catgirl molls-the beautiful and deadly...