This Is Really the World of Martial Arts

Zhou Ji has six grandfathers. The uncle has no lower body, but he is knowledgeable and knowledgeable. Second Grandpa only has two fingers, but he is extremely powerful. The third grandfather is a thief, the fastest in the world. Grandpa Four would go crazy from time to time, and his sword skills were invincible. Grandpa Wu is blind, but his eyes can easily see through illusions. Grandpa Six was a barefoot doctor with unrivaled medical skills. They pinned their hopes on Zhou Ji, but when he was eight years old, they discovered that he was just an ordinary person~