For love of books or love of money (to buy books) the Paper Sisters will take on any job. But as bodyguards for Hisami, a child-prodigy author, they may have bitten off more than they can chew. When a mysterious love letter gets in the way of Hisami's struggle to write her new novel, Michelle, Maggie and Anita will have to call upon all their paper powers and the bonds of their sisterhood.