Han Gong Ju

Han Gong Ju is forced to transfer school and is taken to a home in an unfamiliar area. The house belongs to her former high school teacher's mother, who wants to know why her son is leaving Han Gong Ju there, even if he promises she will be there for only a week. Han Gong Ju carries a secret she doesn't want to be exposed in her new home.
~~ Based on the real events of "Milyang Junior High School" case.