A man who failed his university entrance exams and had been living alone in a filthy hoarder's house for about 30 years is visited by a kind older sister who provides support. The hoarder's house is filled with an enormous amount of used tissues. Unable to bear the sight, the sister decides to provide sexual support even to the dirty penis covered in smegma, overwhelming it with maternal love. The man, being highly potent, starts demanding more and more sexual support.
