[Rules + Thriller + Cthulhu + No Heroine + Survival]
Lu Man suffers from a strange disease, FOP (Stone Man Syndrome), in which his entire body is irreversibly turned into bones.
In order to survive, he boarded a strange train called "Line 13".
There are only three rules here:
1. Don't trust anyone.
2. Eating in the carriage is strictly prohibited.
3. Only survivors can get off.
When others trembled in front of the monster, Lu Man pushed up his gold-rimmed glasses and showed a crazy smile. "As long as you can cure the disease, I will kill you too."
