Sara finds out that her sister has been kidnapped by the dark organization J. But with her unable to call the police or ask others for help, Sarah is determined. She decides to rescue her sister by herself.
Sarah moves cautiously to avoid encountering her enemies as she sneaks into her organization's territory. With her quick and precise judgment, she meticulously figures out where her sister is trapped and plans her best way to rescue her.
Even in her dangerous situation, Sarah continues her forced march, using her memories and love with her as strength. Her time is running out, but her sister doesn't lose hope and focuses on finding her sister.