The city of Prison is a daunting place where 500,000 people are trapped and governed by robotic law enforcers. Chloe, who was abandoned by her parents at a young age, has lived there her entire life, safeguarding her younger sibling from harm and hoping to discover her true purpose. However, criminals occupy the streets, making escape impossible, and Chloe has always been confined to her home. One fateful night, Chloe learns of her neighbor's plan to flee and secretly follows, taking her brother along. Despite their efforts, Chloe loses her beloved sibling, yet remains determined to find him and bring him home.
Eleven years later, Chloe trains tirelessly, honing her martial arts skills and dedicating her life to locating and protecting her brother. In Prison City, she is a fierce warrior, fighting tirelessly with no reward too great, always striving to find Rock and reunite their family.
