C2014 Even Steel Bones Had to Kneel down

Gu Yuan furrowed his brows. Xue Cheng had thick skin and flesh. When it hit his body, it felt like hitting steel.

Although Gu Yuan firmly believed that as long as he continued to fight like this, his strength would eventually penetrate into Xue Cheng's body and completely destroy his internal organs.

However, in order to achieve this goal