A little into the future from now, a few years after the army's "Human Selection Campaign", in a street somewhere in Hong Kong, there is a detective office, the Three Sisters Detective Company. The 3 beautitful sisters there are working day and night to settle an incident involving a book. The girls' names are Anita, Maggy and Michelle.
The oldest sister, Michelle, who likes all kinds of books, Maggie and, even, the youngest sister, Anita, who doesn't like adult books, possess the special powers of a "paper user".
Whether or not they choose to use their powers, how will they resolve the cases they get?