Yuan Gungun is a big bag, what exactly is in its belly? It doesn't know it itself. The world where Yuan Gungun was born is wonderful. Every day, Yuan Gun Gun travels freely in this beautiful and fantasy world. He meets many friends, including the little bubble that loves to sing, the sea horse that can blow anything into the sky, Mr. Cloud that helps him avoid spikes, and the eight-legged monster who is huge but has a gentle heart. Yuan Gungun heard a story in a cave and learned that there were several bags just like him. In order to find his family, he embarked on a fearless journey. In this world full of unknowns, what is waiting for it ahead?
Concept: The world may not be what we imagine, the people and things we encounter may not be what we imagine, and we ourselves may not be what we imagine. What is life really like?