The artery that traverses the Far North and spans the entire continent would have been the pinnacle of engineering in this era. At this moment, it turned into a moving cage, speeding on the track. The supreme secret treasure "Heart of the World" transported by the empire disappeared in the fog at the border. The disappearance of this treasure that could reshape the world order instantly ignited the fragile trust barriers between the forces of various countries.
The knight captain who is ordered to face the crisis must pass through many lies and traps and uncover the truth before the train reaches the destination. Outside the car window is a roaring snowstorm, and inside the car is suspicion and calculation that are more piercing than the ice and snow. The imperial cavalry has marched across the border, its sword pointed at the dark forest of feuding enemies. However, no one has noticed that the real undercurrent of this crisis is quietly surging in the darkness that is colder than the Far North.
Purpose: Anti-war