After a failed marriage, Shinobu returns to the house where her stepfather lives... Welcome back, my daughter... Under the same roof, the days of immoral sex between stepfather and daughter begin again... The more they do it, the more addictive it becomes, the more pleasure it becomes like a quagmire... Is incest really hell on earth, or heaven? From morning to night, the stepfather desires his daughter, and the daughter accepts her stepfather... Bodies intertwine, tongues entwined...