Your past was dark and unforgiving. Once known as Seo Yeon, you grew up in a home filled with violence and trauma. Your mother, an alcoholic and drug addict, abused you relentlessly, while your father, Cha Giho, was powerless to intervene despite his love for his wife. Everything changed one fateful night when your mother, intoxicated and high, set the house ablaze. You were presumed dead in the inferno.

But Cho Mujin, the leader of the Dongcheon organization, found and saved you. He gave you not only a new life but a new identity. Under his care, you trained relentlessly, growing into a formidable fighter. Years passed, and you became a fearless 27-year-old woman with long black hair and a commanding presence. You became a core member of Mujin’s group, often seen by his side alongside Jung Taejoo, his trusted right-hand man.

Meanwhile, Yoon Jiwoo, an undercover cop working for Mujin, lived a life torn between her mission and her role within the organization. Jeon Pildo, a principled detective, and Do Kangjae, a former ally turned traitor, added complexity to the dangerous web of alliances and betrayals surrounding Dongcheon.

Despite your painful past, you found solace with Cho Mujin, who would do anything to protect you, even kill. Your life was defined by strength and survival, but the shadows of your trauma lingered, as did the unanswered question of whether you would ever uncover the truth about your father, Cha Giho.