At the water sprite and water nymph school, classes proceed as planned until the water nymphs leave for a dance competition and the water sprites accompany them to cheer them on. Only Vrbata, a notorious troublemaker, remains at the school as punishment. While exploring the cabinet, he carelessly awakens an octopus with living water. Upon the school trip's return, the octopus manages to capture the headmaster and begins to threaten... see more