One sleepy rainy evening, Laura and Hamtaro fall asleep while reading a book full of fairytales…and dream of a land full of castles and princesses. Bijou is a tough-girl princess who, tired of being cooped up in her castle all day, disappears disguised into the streets of her fiefdom. But she runs into troubles when an evil Sparkle orders her ninja team to get rid of Princess Bijou.