A vibrant kingdom bursting with color and magic faces a threat when the Lord of the Black Curse wakes from his sleep on a dark gray island at its edge. Wanting to make his island stronger, he sends his Black Bean Soldiers into the Colorful Castle to steal its Color Magic Energy. The kingdom's princess sees her people being bullied but can do little, because a mysterious curse has turned her into a small pixie. Help comes from three girls from the human world, who join her against the Lord of the Black Curse, and their arrival shakes up the kingdom's easygoing mood. The result is a comedic magical girl series.