Cao Zhen knew the danger of exposing his back to the opponent, but the other party was already severely injured, so what else could they do?
At most, they would use poison.
Use poison?
He really wasn't afraid of poison.
Although his physique immune to all poisons hadn't fully formed, he was immune to many toxins. It's like asking if a venomous snake can be poisoned by its own venom.
The answer is definitely no!
For some other toxins, even if he isn't immune, he has some resistance. Actually, exposing his back to the opponent was a way to test his resistance to these toxins.
The result...
He did feel the spread of the toxin; it felt a bit tingly, with the punctured spot slightly itchy, and then nothing else happened.
