At that time, Dong Tianyu had a Cave which was just like that. At that time, Dong Tianyu could actually be said to be the World Cornerstone of the Cave. As long as Dong Tianyu did not die, it was estimated that the Cave could also exist forever. However, once Dong Tianyu died, the Cave would also collapse instantly and ultimately disappear.
After learning about this, Dong Tianyu initially wanted to act as this World Cornerstone himself. After all, the Cave was entirely his own, so if possible, there was actually no problem with him being the World Cornerstone.
Regarding becoming the Cave's World Cornerstone, if he were to die and a new World Cornerstone couldn't be found in time, the space within the Cave might very well be completely destroyed.
But if it really came to that point, it would not affect Dong Tianyu at all. After all, once he was dead, why would he, like a Treasure Delivery Boy, hand over the Cave he had meticulously built to the enemy who killed him.
