Summer vacation is a good chance for children to relax and have some fun. But the children of families living in Beijing's Mulan community don't have a good plan for their break from school. Most of their parents have moved to Beijing from other cities to work, however the children still study at schools in their hometowns. So during their summer vacations, the students come to Beijing to reunite with their parents. Their parents are often too busy to spend much time with their children, and there are no play.