Seeing Xu Feng's expression of thinking, the old man knew that Xu Feng had scruples. However, it's no wonder that Xu Feng, in his own capacity, offered to teach Xu Feng. It's no wonder that the other side was afraid.

"you don't have to worry about anything. I won't harm you just because of your relationship with Prince Zhou. As for my teaching, if there is a price, the mysterious thunder in your body just now is very good for me. I want to use it to warm myself. " The old man said, "if you still can't believe me. You can ask King Zhou to come. I think he...