Since the Kunlun Sect group surrendered, they were easily brought away from this place by the guards that Ye Qing Huan summoned.
At the same time, there were more soldiers from the Ye Family that appeared in this place.
They quickly surrounded the corpse of the demonic creature and started forming some kind of array around it. It didn't seem like they were planning on destroying it, it seemed like they were using that array to preserve the corpse of the demonic creature.
Though even if they didn't do this, it wasn't as if the corpse would have rotted away that easily.
This was a corpse of a demonic creature that had reached the peak of the Qi Condensing Realm and was close to reaching the Golden Core Realm. It was filled with vitality still even though it was already a corpse and wouldn't have been destroyed that easily.
So even without this array, it would have remained here for a long time.