"When Tokyo falls victim to a deadly terrorist attack, Detective Sergeant Mariko Oshiro knows who is responsible, even if she doesn't have proof. She urges her commanding officers to arrest the perpetrator--an insane zealot who was just released from police custody. When her pleas fall on deaf ears, she loses her temper and then her badge, as well as her best chance of fighting back. Left on her own, and armed with only her cunning and her famed Inazuma...

Mariko Oshiro, as the only female detective in Tokyo's most elite police unit, has to fight for...respect, especially from her new boss. He gives her the least promising case possible: the attempted theft of an old samurai sword. But the case proves more dangerous than anyone on the force could have imagined.