The Great Collapse Era. In the near future, civilization has collapsed due to a large-scale disaster and war, and has one foot in the apocalypse. Detective Zoe, a young girl struggling to maintain security, gets caught up in mafia trouble and saves an elderly woman. But then a giant puppet weapon released by the Mafia's pursuers appears. Meanwhile, the old woman also has some kind of disturbing secret.....?

大崩壊時代――。大規模災害と戦争により文明は崩壊し、終末世界へ片足を進めた近未来。治安維持に奮闘する少女・ゾーイ刑事は、マフィアのトラブルに巻き込まれる形で一人の老婆を助ける。だがそこへマフィアの追っ手が放った人形巨大兵器が現れて―――。一方、老婆にも何やら物騒な秘密が……!?