In the star dream city, five smart star babies were living happy life under 5 kind-hearted teachers' educating and raising. But those babies were actually shouldering holy missions. They would share the joys and sorrows on the way to growing up and they also learned many virtues such as how to share, how to be grateful, how to be friendly and how to care about others. They make efforts to be the star messengers helping make human beings' dream come true.