A young man leading an aimless life finds that he must change his outlook to life when he falls in love with a hard working letter carrier. As he tries to impress her by collecting and learning about postage stamps, he acquires a rich, diverse knowledge of China's history and accomplishments and even wins the top award in a national quiz competition among Chinese factories.
| Actor | Role |
|---|---|
 Guo KaiminDing Dasen | Ding Dasen |
 Chen YanhuaZhou Qin | Zhou Qin |
 Zhang MinDing Huijuan | Ding Huijuan |
 Wang SuyaMother Ding | Mother Ding |
 Shan ZenghongDou Xiaohu | Dou Xiaohu |
 Niu BenOld Han | Old Han |
 He LinGao Qiang | Gao Qiang |
 Lu QingJiang Hao | Jiang Hao |
 Qiao QiOld Scholar | Old Scholar |
| PPan FengXingxing | Xingxing |