This System Is Unfair

I am the descendant of the dragon and have survived countless calamities without dying, so I look down upon all things in the world. But he never thought that he would be poisoned by ten thousand books, and every time he was free, he would be bitten by ten thousand poisons and be in pain. He accidentally learned that he could write a poisonous book and use poison to fight poison to force out the poison. Although this has been recorded, it is unprecedentedly risky! I have no choice but to give it a try, hoping to rid myself of the poison in my body and save me from torture. The taste is very strong This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.