From the old arena to the Void!?
If it were before, Chun wouldn't have been able to figure it out. But the instant he saw that familiar metallic sheen on the floating mini-asteroid, Chun understood at once: it was a Magic Gold Meteorite! Another back door opened by the Ten Lords! As long as it's a back door, it's part of the Creation Rules, so linking it to the arena rules is absolutely possible.
The next moment, Chun saw the Ugly Emperor Celia waving at him from the airship deck.
Come to think of it, this should be the first time Celia's seen my real, in-person appearance, right? What about Gauss and Tifana?
Chun landed on the meteorite.
——Master Level Mining Technique Prompt: You have discovered Divine Stone Ore!
Only now did Chun realize that his Mining Technique was the earliest skill to reach Master Level, and it's stayed at Master Level ever since.
The Ugly Emperor laughed: "Warrior, have you discovered anything?"
