The wife of a man who owes Takeru's father a large sum of money comes to visit. Takeru doesn't understand the situation, but in exchange for repaying the debt, the wife asks if she can take care of Takeru's daily needs. Takeru is confused, but seeing the woman's desperate state, he decides to accept. This is how the story begins. The woman has a daughter. She has come with her, as her mother asked her, to take care of Takeru's daily needs. Suddenly, mother and daughter end up living together in Takeru's house. What's more, they are in a mother-daughter relationship. This is the key point of the story. The mother is surely well aware that there is no way she can repay the large debt with just "personal care." It is likely that she was planning a different kind of "care," even though it was the same kind of personal care. However, she knew that if she were to honestly tell him about it, Takeru would not accept it so easily. So she did something unexpected. She suddenly approached Takeru's lower body and took him in her mouth. Takeru was shocked and stunned. To add insult to injury, she urged her daughter to take him in her mouth as well, and together, mother and daughter, they invited Takeru into a drunken orgy.