I Have a Sword Bone

My name is Yang Fu, and I was born with a sword bone. In this world, some people give birth to cow bones, some give birth to dragon bones, some give birth to phoenix bones... And Yang Fu gives birth to sword bones. The sword bone is a weapon-like alien bone and cannot be possessed like other alien bones. However, the weapon-like alien bone has obvious characteristics. The attack is very powerful, but the shortcomings are also obvious. It cannot be possessed and the body's defense is weak. However, Yang Fu's sword bone is not only powerful in attack, but his body is comparable to a divine beast!