Martial Arts Are Overwhelming

Liu Feng accidentally got a strange animal skin. Others spent a lot of effort to obtain a treasure of heaven and earth, and after taking it, they were promoted to a level, and they were immediately overjoyed. Liu Feng obtained ordinary medicinal herbs and placed them in the animal skin space, and the effect immediately surpassed those of natural materials and earthly treasures. Others spent all their treasures to build weapons, but the effect was only unsatisfactory. Liu Feng was able to turn ordinary iron into a magical weapon. In short, magical animal skins can make the ordinary become precious, and the precious become extraordinary. This is a super evolution story.