Lu Yuan and Meng Ruyan were hiding in the guest room and had not gone out.
As for the ones who went out, they were their clones.
Lu Yuan wasn't surprised that Meng Ruyan had the divine ability to create clones.
After all, as a spy, if she had a clone, it could help her solve many problems.
After knowing that Meng Ruyan had a clone, Lu Yuan could carry out many of his plans.
For example, they could send their clones to the King of Hell's banquet while they hid in a relatively safe place.
As for why the ghosts could not see the difference between the two clones.
This was the basis for ghosts to judge between living humans and ghosts.
The biggest difference between living humans and ghosts was Yang Qi.
As for the clones, they were also inanimate objects. They did not have Yang Qi or Yin Qi. They were purely inanimate objects.