Licca Kayama considers herself to be just an ordinary 10-year-old girl; she lives in a quiet Japanese suburb with her mother and grandmother, spending her days at school and playing with her friends. However, her two guardians have kept one crucial secret from her: Licca is actually a princess of the hidden Doll Kingdom. During a class trip to the local museum, Licca and her friends are suddenly attacked by the dangerous Scarecrow and his henchmen. Sent by the evil new rulers of the Doll Kingdom, these wicked minions will use every magical trick available to capture the young princess. Licca's only hope lies in the arrival of the Doll Knights—once the mighty guardians of the royal family, they are now the only force capable of fighting the darkness that has engulfed Licca's ancestral home.