Nenene Sumiregawa, a famous Japanese author travels to Hong Kong for a book signing. She meets Michelle and Maggie, two of the Paper Sisters, who have been hired to be her local guides. When Nenene's hotel suite is bombed, the Paper Sisters volunteer to help protect her. She spends the night at the Paper Sisters' apartment after meeting Anita, the third Paper Sister. A jealous rival holds her hostage at her book signing the next day, but he is foiled by the three Paper Sisters. Nenene is excited to see their master of paper techniques, but is disappointed to learn they have no connection to her friend, Yomiko Readman, who has been missing for four years. When Nenene is attacked on her way home to Japan by another rival, the Paper Sisters follow and rescue her.