After escaping from a secluded laboratory, a young girl with overwhelming power finds herself on the run from several mysterious organizations, seeking refuge with a woman and her younger brother.

Cha Woo Sol, a victim of school bullying, meets MMA champion Jeong Do Hyeon while imprisoned. He trains under Jeong to become stronger and seek revenge against his tormentor.

When a bright high school student with memory loss enters a national talent show to help her struggling family, she finds her ordinary life flipped upside down by the sudden arrival of mysterious strangers seemingly connected to her past.