Now it was common knowledge that teleportation doors couldn't be stored in storage rings because their mere presence would cause the space inside a storage ring to destabilize and collapse.
The opposite was also true.
If the space inside an item was stable enough, it won't collapse even if a teleportation door was stored inside.
Knowing this fact, Valerius felt certain that he should be able to store it there safely.
The mysterious space was extremely massive. It even had a towering pagoda in its center. Yet, there was not a single crack in it. This goes to show that it was a world of its own, a very stable one.
It was hundred if not thousands of times more stable than the space inside any storage ring.
'It works. Good for me.'
As he put it to the test, he was glad to find out that it worked. He was able to safely bring the door into his mysterious space and place it there.