This trap is so obvious that even Shadow Seven could see through it.
Clearly, one Gregory isn't enough to satisfy the demon gods' greedy appetites.
Having gone to the trouble of using the Supreme Demon God's power to create this plane, they might as well kill two birds with one stone.
Using the trapped Gregory as bait, they aim to lure more human Supreme Being seeds, causing more casualties!
The growth of potential Supreme Being [Thor] is unstoppable, so why not take out more of humanity's Supreme Being seeds?
These are the future backbone of the corps, directly threatening the demon gods.
Shadow Nine spoke again, "There's some good news. These demon creatures are at least level 201, but none exceed level 600."
Level 600, even for a genius in the demon race, couldn't directly threaten a ninth-tier Battle Lord.