The majority of the gods of the Origin World walked the path of close quarters combat, and Ancient God Ru Shou's physical body was also at ancient god level, so even after perishing and becoming a corpse demon, he was still a formidable existence. Unless one was in the god realm, they could not fight against him.
In the small world, apart from Li Yunmu who was disguising himself as a pig to eat the tiger, whether it was the white-gowned people or those in black mist, all of them were at best half gods.
Once the corpse demon came out, beyond the heavens' younger generation would probably die. Only Jue Qingzi's group, which was under Li Yunmu's protection, would escape safely.