In some ways, Usonia was a very peculiar nation.

It was touted as the most advanced nation in the world, yet it didn't have a high-speed railway system.

The reason for this was also very unfortunate. During the second world war, they had taken a very simple approach to setting up their railway system. Thus, aside from the main lines, countless branch lines were also constructed, meaning that even every town and village had access to rail travel. Due to the simplicity of the system, there was insufficient planning, and these railway systems took up what were once the best roads.

Not long after the second world war, railway freight was found to be insufficient to satisfy Usonia's freight needs, so it was gradually abandoned.

Furthermore, even Usonia couldn't truly provide all villages and towns with access to the railway system. While it was true that branch lines had been constructed even to rural areas, those railway tracks were of an extremely low quality, and they had to be scrapped after just several dozen freight runs. As a result, an idea that was very good in theory was found to be lacking when implemented in real life, as was quite often the case.

After that came the high-speed rail era.

In order to upgrade these...