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**
The bloody pledge was prepared quickly. When Bian Heng let his old servant took the bloody pledge, Zhang Tie even doubted that Bian Heng always blackmailed his patients in this way.
The process of the so-called bloody pledge was similar to that he made when he joined Dragon Emperor Immortal Palace. The only difference was that this token, being used for the bloody pledge, was a little crystal dragon while the contract was a bizarre piece of semi-transparent paper being covered with dense runes.
Bian Heng soon wrote rows of words on the contract by cinnabar which gave out bizarre light. It was an employment contract. After writing it, Bian Heng cut his own thumb slightly and pressed his fingerprint on it before passing it to Zhang Tie.
After taking the bloody contract, Zhang Tie read it seriously. The contents of this bloody contrast mainly contained the following four contents, which specified the relationship between him and Bian Heng.