Fierce, mixed-race fighter Shindo has been kidnapped by the yakuza. After brutally beating most of them in an attempt to escape, she is forced to work as a bodyguard to protect the gang boss's sheltered daughter Shoko, a strange, friendless eighteen-year-old who could order Shindo's death in a moment.
At first Shindo derides Shoko's naïvete, but as the men around them grow ever more bloodthirsty ...