The whole world is driven by the waves of the industrial revolution. From modern times to modern times, immortal monsters suddenly appeared. Covered with a film of steel, the heart will not be destroyed as long as the heart is not destroyed, and the person gnawed by it seems to come back to life after a death and begin to attack humans. Then these monsters, known as Cabane, proliferated explosively and spread all over the world. In the far eastern island nation of Japan, the foals and others who fought against the threat of Kabane and survived on one of the heavily armored steam locomotives (commonly known as Juncheng) crossing the front line formed a "joint army" with the offensive and defensive battleground of Kabane, the abandoned station "Haimen" facing the Sea of Japan, and the people of Xuanlu, Hailuo, and Haimen, plotting a strategy to repel Kabane. At this time, Shengju found that Cabane around Haimen had the characteristics of being dominated and group action. Sheng Kui reported the matter to the Union Army, but was ignored, but was abused by the Union Army because he was Cabanelli. Shengku, who lost his cool because of anger, decided to go deep into the enemy territory alone. On the other hand, John Doe began to have different feelings for the foal who had always supported her. But just then, she learned that Shengku was going to go deep alone.