Comments of chapter undefined of Douluo Dalu: 9 Goddesses Douluo

I always thought that Haotian's grandfather had killed Meijing's parents. After all according to what you wrote they died in a freak accident and Grandpa just happened to be there to pick her up? That's why I was hoping that the grandfather sword would help Haotian put the elders in their place. One more thing, maybe my memory is failing me, but where did that name come from?