In the vibrant Colorful Castle, a paradise brimming with color and mirth, a dark shadow looms when the sinister Lord of black curse awakens on the desolate gray island nearby. Intent on augmenting his power, he schemes to pilfer the precious 'Color Magic Energy' from the castle. To achieve his nefarious goal, he dispatches his Black Bean Soldiers to stealthily extract the energy. As chaos ensues and the kingdom faces its darkest hour, the cursed princess, transformed into a tiny pixie, despairs until three girls from the human realm unexpectedly ally with her. Together, they challenge the malevolent Lord and shatter the tranquil veneer of Colorful Castle with their presence.