After the Catastrophe, every rule in the world was rewritten. In the Age of Black Iron, steel, iron, steam engines and fighting force became the crux in which human beings depended on to survive. A commoner boy by the name Zhang Tie was selected by the gods of fortune and was gifted a small tree which could constantly produce various marvelous fruits. At the same time, Zhang Tie was thrown into the flames of war, a three-hundred-year war between humans and demons on the vacant continent. Using crystals to tap into the potentials of the human body, one must cultivate to become stronger. The thrilling legends of mysterious clans, secrets of Oriental fantasies, numerous treasures and legacies in the underground world — All in the Castle of Black Iron! Written by Drunk Tiger, this novel is a prime example of fantasy steampunk. Let us journey through the world of limitless possibilities and inventions together! ------ **Warning: This novel contains mature content**
"When demons change the tactics of the wing demon troops, their air defense in the front lines to the north of the Selnes Theatre of Operations would weaken. Although spare wing demons were unable to annihilate the human airship troop, they could also provide the necessary early warning for demons as the defensive line off the demons against human airship troop. To date, the demons have started to gather the wing demons collectively. This means they would leave a lot of loopholes in the north defense line. As long as we seized this chance, the human airship troop might give a heavy blow to the ground troops of demon corps!" Lan Yunxi's gleaming eyes roused the others' morale once again. As a result, the conference room gradually warmed up.