A portrait of a young girl coming to terms with loss and abandonment, Six-year-old Jin and her younger sister Bin live on the edge of disaster, but they are not aware of it. In the small apartment where they reside with their single mother, the menacing sounds of the outer world disturb their precarious cocoon.
One day, their mother packs all their belongings. For Jin, the days of going to school are over. Mommy is gone, leaving her and Bin in a hostile home with their alcoholic Big Aunt and a piggy bank to slowly fill with coins. Once the bank is full, their mother will be back.