C562 Keep abreast of the times

Through his interaction with the old poisonous substance, Qin Lang's understanding of the underworld poison had deepened by a lot.

After that, Qin Lang turned to the poisonous substance and said, "Master, I have some new understanding towards martial arts now."

"Hey kid, don't push your luck!" The old poisonous substance's nature finally revealed itself, "I've explained all the poisons to you