Erosu wa futon no kaori

エロスは蒲団の香り

Also known as Eros is a scent of dan, Eros is the scent of a futon

A virgin girl becomes an apprentice to a middle-aged writer. The writer is in a position of guardianship over the girl, but he wants to make a move on her but is unable to. At that moment, he uses his imagination as a writer to its fullest and goes on a rampage with the girl in his fantasy...