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 was a detective office. The name of it was "The Three Sisters Detective Company". The 3 beautiful sisters there were working day and night to settle an incident regarding 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 books, in truth possesses the special power of a "paper user".