Chen Ye (male protagonist) | 32 years old, retired special forces soldier turned truck driver, with old bullet wounds on his right arm, drives an old red Dongfeng heavy truck (license plate Liao B·X3478), and has a hobby of collecting highway postcards from various places |
Su Wanyi (female protagonist) | 27 years old, the sole heir of the Su Group, Master of Finance from MIT, suffers from claustrophobia (sequelae of being kidnapped in childhood), looks iceberg beautiful but is actually obsessed with road documentaries |
| **Villain** | Zhou Muchen (38 years old), Su Wanyi's fiancé, the young owner of Zhou's real estate, controls the underground smuggling network
