Previously, Koru Hayami was caught and sweet tortured.
Few months from that nightmare, she was having some trouble for her own.
She can't get over that experience.
Humiliation, shame, pleasure......That special moment still running through her mind constantly.
Her minds already hit the limit.
She'll be breaking a part......
She was asking for professional help, visited a hospital.
However the hospital was the sink of iniquity that harmed Koru!!
She accepted the fact that this was her destiny.  
nightmare again......Party for off the edge has just begun!!