As the two travel throughout the world pursuing their mission of revenge, they will come across many different forces and many hidden worlds. Some of these people will be helpful for Aya and Ajax's goal. People will be equally vengeful towards the same people the Okura's are hunting. As Ajax and Aya Okura follow down this dangerous path, they must decide what is right for both them and humanity. Will they continue to hunt this treacherous path, killing elite players of hidden societies? Or will the siblings cut their ties, abandon their path of rage, and find their redemption away from death and violence?