Chapter 617: The Power of a Strong Fighter

When in conscientious cultivation, Zhang Tie felt time flying.

He even didn't find that his broken leg had already healed.

He needed to light 21 invisible surging points to promote to LV 10 from LV 9. The 21 invisible surging points spread all over his body. Sometimes, even Zhang Tie felt that he was not cultivating but decoding a very advanced safe in a special method.

His body was a safe with a 987-digit code. The front 34 digits were easily decoded; however, the later 953-digit code became complex and difficult to decode.