Zhixian believes that following the rules and working hard in his high school wind band will fulfil his dream of becoming a conductor. But when the opportunity arrives, his best friend Zeming begins challenging those rules. Finding themselves on opposing sides, Zhixian must choose between his dream and their friendship.
| Actor | Role |
|---|---|
 Yang Zhen-yuLin Zhixian | Lin Zhixian |
 Wang Ching-kaiZhang Zeming | Zhang Zeming |
 Chiang Kuan-hsunWei Chenxiang | Wei Chenxiang |
| JJeffrey YanTian Youhe | Tian Youhe |
| PPeng Chen-yuanLin Wenjie | Lin Wenjie |
| HHuang Sheng-hauA-Cheng | A-Cheng |
 Danny DengNot listed | Not listed |
 Tim HsuNot listed | Not listed |
 Wu Jen-yaNot listed | Not listed |
| LLee Ming-cheNot listed | Not listed |