Kerokero Keroppi no Bokura no Ohimesama

(Esta sinopse está em inglês. Ajude a comunidade traduzindo!)

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Keroleen gets teleported to a fantasy land through a magical pond. There is a handsome prince who charms her. He wants her to visit more but the boys discover that his kingdom is not a righteous one. The gang has to go save Keroleen and the fate of their town from the false prince.