The school cheerleading and tennis clubs go on a camp together. Soon after arriving, an old woman warns them to keep away from a certain coastal cape.
The story begins when a middle school girl named Yume sees something fall from the sky, and meets a pale violet-colored kitten named Mew. It turns out that Mew has the power of "Yume Synchro" (Dream Synchro), the power to enter dreams. In the dream world, the girl and Mew collect Dream Stones. (Source: ANN)