In ancient times, humans were constantly killing people.
Someone made a magical instrument called "Qi", which is a vessel that can absorb human evil thoughts and looks like a bottle. Because of the existence of Qi, human beings were able to live in peace for many years until society was established and on the right track.
One day, the contract was broken for unknown reasons...
A total of seven fragments were scattered...
And these fragments not only carry an evil aura, but also carry extremely powerful power!
Black gold, rotten wood, drowning in the abyss, burning in vain, splitting the sky, delayed! The seven fragments represent the power of metal, wood, water, fire, earth, space, and time.
Some people will get the power of some fragments by chance. These people with superpowers are called: Contractors!
Purpose: Firmly uphold justice and crush darkness.