It's feudal Japan of the first Tokugawa dynasty, and the Pirate Cats are trying to be assigned a specific fiefdom by the emperor. Why? You'll have to read this tale to find out – it will be a legendary romp, with Geronimo Stilton unwittingly becoming a legendary swordsman, Trap showing off his legendary appetite, and Thea Stilton accidentally inventing Kabuki theater! A rattastic tale of honor, acrobatics, and... cars?