The Old Man And The Sea

Dieselpunk

The nation on the train, diesel and dirt, the sorcerer in pursuit of immortality

In the world outside the train, the dark monster lurks with a watchful eye, while the false god of faith is filled with hope

When this row of cages is opened, the monster, the false god, will finally realize

The train is a cage, not to punish the sorcerers, but to protect them