C1225 His Physique Was Improving Again

After paying the money, Ye Ziheng went into the seclusion room and looked around. The walls were made of special iron, and so were the floors and ceiling.

Although this iron was not a rare material, its strength was extremely high. It should not be a problem for Ye Ziheng to break through here.

Ye Ziheng then sat in the middle and took out the Spirit Stone, placing it in a circle around him