In the realm of Jewel Land, the Jewelpets, embodiments of love and care from their queen Jewelina, face turmoil when a meteor shatters the Mirror Ball into scattered 'Deco Stones.' Ruby, an endearing yet scatterbrained Rabbit Jewelpet, adores all things shiny and owns the Kira Kira Shop. Intrigued by the legend of the Deco Stones, Ruby and her companions embark on a quest to retrieve them. Along the way, they encounter the enigmatic KiraDeco 5, who share their mission. Bonds form between the two groups, especially with Pink Oomiya. Together, they must gather the Deco Stones to prevent the encroaching Eternal Darkness from engulfing the human world.