Sister investigators of Chloe and Rin who received orders to destroy the Kokuryukai plotting cyber terrorism. However, her younger sister Rin is kidnapped by the Black Dragon Society, and Chloe heads to the Black Dragon Society's hideout alone to rescue her sister. Chloe is held hostage by her sister, and unable to resist, the executives of the Kokuryukai force her to do her best...!