Shiwu Ershi
1520·十五二十
A prince and a royal maid, both 15 years old, are cursed by a villain and transformed into 10-year-olds. Their magic allows them to revert to their original age when one laughs and the other cries, but this causes the other to shrink to five years old. They must escape their pursuer and find a way to break the curse, while possibly preventing disaster for their kingdoms.