Chen Ye (Male Lead) | 32 years old, a discharged special forces soldier turned truck driver. He has an old bullet wound on his right arm and drives a battered red Dongfeng heavy-duty truck (license plate Liao B·X3478). He collects highway postcards from across the country.
Su Wanyi (Female Lead) | 27 years old, the sole heir to the Su Group and a finance master's graduate from MIT. She suffers from claustrophobia as a result of being kidnapped as a child. She seems like an icy beauty, but is secretly obsessed with road documentaries.
| **Antagonist** | Zhou Mushen (38), Su Wanyi's fiancé and the young heir to Zhou Real Estate, who controls an underground smuggling network
