In the year 2035, Earth has plunged into a terrifying dark age under the control of the evil organization, the Gorai Clan. Amid this chaos emerges Asuka, a young kunoichi descended from the legendary Iga ninja lineage. She is the last descendant of warriors who, since the Edo period, have stood against the Gorai Clan and continuously thwarted their sinister plots. One day, Asuka discovers Dr. Nishijo, a renowned physicist, under attack by the Gorai Clan's assassins. The doctor had successfully developed a time-travel machine, a technology believed to hold the key to ending the Gorai threat. Believing in his mission, Asuka resolves to become the test subject for the time machine, traveling back 30 years into Japan's past. However, Doll Master detects her movement and sets a vicious trap—to dominate his younger self by manipulating the past. Asuka becomes the initial test subject for Doll Master's early combat ninja experiments, forced to endure intense torture and humiliation. Now, she stands at the brink of a decisive battle that will determine the fate of Earth. Can Asuka defeat Doll Master and restore peace to the planet?