Five different girls formed the most invincible "Iron" team in history. Lan Yiyi’s sly male husband was inexplicably missing due to owing huge debts. The four sisters went through a series of ridiculous oolong incidents to help Lanyi’s debts. They and a group of five people staged the "family" feelings of the ancient city of Beijing.
| Actor | Role |
|---|---|
| WWang ZiLiu Ying | Liu Ying |
| ZZhu QiLi You ting | Li You ting |
 Li ZhuThe Shop Manager | The Shop Manager |
 Christie ChenMao Mao | Mao Mao |
 Li XiaomingLan Yiyi | Lan Yiyi |
 Liu SitongZhang Li | Zhang Li |
 Liu ShuailiangYang Fan | Yang Fan |
 Yang DiMan Who Needs to Urinate | Man Who Needs to Urinate |