Super Medium?

Gu Han looked at the black flames in the sky with a despondent expression on his face. "The Nine Illusory Quicksand is a godly material, and its origins are mysterious and unclear. No one really knows much about it. As for what it's uses are, I'm not too certain as well. I only know that the Nine Illusory Quicksand is an indispensable material to maintain the Misty Illusory Manor's space. Although they don't need a lot, it is something that they cannot do without. From this direction, it can be determined that the Nine Illusory Quicksand should be a material that corresponds to spatial energy. As for what it is exactly, I really don't know!"

"Has something to do with space?" Jun Moxie furrowed his brows.

Just what is this Nine Illusory Quicksand thing?