At noon, the West Railway Station in Yggdrasil City was bustling with people. If viewed from a high altitude, it could be seen that, with the main building of the West Station as the center, the elevated tracks radiated in all directions, forming a dense traffic network.
These rails connected the regions and cities of the seven city-states and were the main means of transportation between different places.
The train station implemented a diversion management system, dividing the trains into three, six, and nine classes, corresponding to different floors, so that people with different social statuses could receive different treatments.
From the transportation technology, it could be seen that even if the world was nearly destroyed due to the horrendous nuclear world war and alien invasion, the flame of civilization was still fiercely burning; humanity also didn't stop moving forward.