The fairy kingdom has long been threatened by the dark witch Wool, the leader of the Dark Undulation. The queen Velvet sent the cute little fairy Silk to seek aid from the red-haired witch Cotton, the only one who could defeat Wool. Cotton agrees under one condition: she will receive some willows as a reward since willows are her favorite food. Finally, after defeating Wool, Cotton realized that someone poisoned the promised willows, and swears revenge. Accompanied by Silk, she begins to chase the mysterious enemy.