"Running is prohibited on the playground"—a primary school prefect trying to do her job but simultaneously reflects on the implementation and significance behind the rule.
| Actor | Role |
|---|---|
 Yeung Yee-YeeGrandma | Grandma |
| LLok Sze ChingChan Ching | Chan Ching |
 Sherring NgHead Teacher Tsui | Head Teacher Tsui |