Lee Myeong-Jun, Vice Chairman of Hyundo Group, lost his daughter to the Iljin group. For revenge, he adopts Yoon Ga-Ram, a psychopathic North Korean defector. She is a sadistic human weapon born after North Korea's drug experiments. A psychopath girl who killed everyone at the lab and escaped North Korea alone. Yoon Ga-Ram has just been released from a juvenile detention center in South-Korea.

(Source: Naver Series, translated)