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**
Zhang Tie had been busy for half a year. The arrival of Wu Qiankun and Yuan Lang finally foreboded the auspicious day of Zhang Tie.
10 shadow demon knights in five change realms or higher were enough to help Zhang Tie promote to a heavenly knight. By then, he would make wholly new progress in all aspects again.
After promoting to a heavenly knight, Zhang Tie would be able to enter Mountain Ruins. He would have more freedom in moving forward or retreating. Additionally, Zhang Tie would be able to manipulate wind and air as a divine dominator. Zhang Tie didn't know what he could do in details; however, he was sure that he would be more confident to face a sage-level knight after promoting to a heavenly knight.
In Taixia Country, heavenly knight was the beginning of becoming a real powerhouse. In Motian Realm, wind immortal generals were also the pillar of immortal generals.
This promotion would be the most important and easiest for Zhang Tie.