The Blue Ring Assassin introduced Zoe Waringi-daughter of an Aboriginal mother and an Irish/Australian father. An expert on venomous sea life, she became a vigilante and assassin, eliminating people who escaped the law. She now returns but questions her job when she is contracted to terminate a Tokyo oyabun, the leader of the Inagawa-kai yakuza. Due to her hesitation, Zoe is now the target of her employer, a Jewish group called Der Finder with ties...