Padudu is a 12-year-old apprentice witch selected to represent her town in the coliseum. Wearing her magical fish costume, which keeps her warm and fed, she embarks on her journey. However, along the way, she is swept away by a river to Dance Valley. Mayor Koffy captures her and throws her into the dungeon, hoping to eliminate the competition for Dance Valley's own coliseum candidate. Fortunately for Padudu, this dungeon houses the mysterious witch Nonononn. They team up for a magical fight for survival. At the end of the Blue Gender Trailer, the word 'Magical witchland' appeared!