Song Shuhang had previously considered dispatching some powerful demodragons to the main world to snipe Evil Delusion, sabotaging the Limitless Demon Sect's plan and making their Demon Empire operation harder—after all, how can you see a rainbow without a little storm first? The harder the Limitless Demon Sect finds their "Demon Empire Plan", the less suspicious they'll get.
However, Song Shuhang was also worried about one thing. Once demodragons leave the Netherworld Realm, they slip out of the jurisdiction of his "temporary ruler of the Netherworld" authority, making it tricky to keep them in check.
At that point, after the demodragons kill off Evil Delusion as ordered, they might just take over the job of Evil Delusion themselves, stirring up chaos in the main world. That would be an even bigger headache.
