In Hong Kong, sisters-in-everything-but-blood Anita King, Michelle Cheung, and Maggie Mui run a detective agency that trades on their shared power to control paper, turning stacks of it into shields, blades, or wings on command. Michelle chases romantic notions, Maggie buries herself in books, and Anita would rather punch a problem than read about one, and together they take on book-recovery cases that keep drawing them toward the shadowy Dokusensha Corporation. This manga spins the Paper Sisters out of Read or Die into their own series, with Read or Die's Yomiko Readman making a guest appearance.