A wave of terrorism is washing over Tokyo. Supposedly secure government buildings are being bombed in quick succession. With so many secret agencies vying for control of the mysteries of Hell's Gate, blame might be tough to assign - though the reappearance of a Contractor named Amber might serve to narrow the list of usual suspects considerably. Operatives on both side of the law are hunting her down. Some want justice, some want revenge. Amber wants chaos in the streets. If her past is any indicator, she'll get exactly what she desires. All signs point to something big.