This is the story of a brave sister who continues to support her brother who has become sensitive and withdrawn, and continues to satisfy his sexual needs for 10 years. Even though he has become a child-rearing man and is ridiculed by those around him, to his sister he is a kind and precious brother. Whenever his sister is about to give up on her boyfriend or work, her brother comforts her, and before they know it, their relationship has crossed the line, with only hand-satisfying. Watch as this brother and sister support each other through sex for 10 years.