Zhang Xiaohong, a struggling coach, leads Wang Cai and a group of Wa ethnic boys from Yunnan through various hardships. Together, they demonstrate that there are no class distinctions in tennis. In their pursuit of the national championship, they leave their mountainous village and learn to overcome challenges along the way.
| Actor | Role |
|---|---|
 Fan LeiZhang Xiaohong | Zhang Xiaohong |
| WWang FaWang Cai | Wang Cai |
| 龚龚旺维Not listed | Not listed |
| 彭彭诗雅Not listed | Not listed |
| 刘刘小芬Not listed | Not listed |
 Wang ZhonghaoSun Chen | Sun Chen |