Last Sister Class

Lim Dayoung an older sister who intercepted her younger brothers lover Because of that he confines his younger brother Dajung Lim in a mental hospital and leads a happy marriage with Yoon Taejin Then one day the younger brother escapes from the mental hospital and conspires with the helper Jo Yonghwan who was a friend of the ward and a desperate revenge for the older sister and former lover Yoon Taejin unfolds Dayoungs bloody kidnapping their tamed slave life and enduring harsh punishment