Small but tough Baek Sang Ah, known as Miss Baek, comes across a young girl, Ji Eun, a victim of domestic violence by her game-junkie father and his girlfriend. A lifetime of abandonment, abuse, and prejudice has taught Miss Baek how to shut others out, but she slowly opens up to Jieun she sees as a mirror of herself. When Ji Eun finally runs away from despairing violence Miss Baek whose sense of helplessness was pushing her to let Jieun go vows to fight for Ji Eun, even if it meant risking her own life.