Dark Orders, The Guardian
Yang Lujia just didn't want to delve deeper on the Demon Garden that his first disciple knew about. It was his own story and stepping into it would mean disrupting the natural flow of his reincarnation. After all, his belief towards of Lin Diyu was more inclined to the latter being reincarnated from once-a-powerful figure in the past.
Arriving upfront of the so-called world, Yang Lujia was able to locate the World Core that was filled with darkness. His eyesight could not be any more correct. As he was more powerful than any of them at present, he already this even when he was away from this broken world. Moreover, with the aid of Fortuniel, these clues were further solidified as evidence that he was right.
"This broken world is a bit interesting. I just have one more question to ask you. How is it that the Fiend Emperor Palace survived inside this broken world when there were several stronger creatures residing within it?"