After Ten Years of Sharpening, My Whetstone Became Holy

Xiao Dongpeng, a young boy from another world, wanted to learn martial arts, but was kicked out, so he had to pick up the host's ancestral business and sharpen his sword. "The whetstone system is activated. If you sharpen the knife carefully, the whetstone skill will increase by one." Xiao Dongpeng quit: "I am the one who sharpens the knife. I only add power to the whetstone. What about me?" "This is a whetstone system, you are just the grinder, don't think too much." Xiao Dongpeng had no choice but to continue grinding. He had to rely on this to make a living. "You sharpen your knife carefully, upgrade the whetstone to a spiritual stone, and obtain the skill, Mountain River Tower." "You sharpen the knife carefully, upgrade the whetstone to a black stone, and obtain the skill, Fantian Seal." Ten years later, with one stone in his hand, Xiao Dongpeng was able to defeat gods and Buddhas, ghosts and human beings. He was invincible in the world...