Su Lun had previously read in the annals some legends saying that the Netherworld is the final abode for the dead.
Therefore, ghosts under normal circumstances wouldn't "die." Even if they were killed, they would only lose some of their cultivation, and then they would be reincarnated and their bodies recondensed under some special laws.
However, Su Lun also felt that this was the general situation.
In dealing with various types of ghosts proficient in revival, his abilities were exactly the antidote.
If a Soul Shard was stripped away, there was a high likelihood of no resurrection.
Su Lun skillfully stripped the soul mist from the Shuten-doji.
"You have stripped the soul of the Ghost King of Hundred Demons 'Shuten-doji' "
"You have comprehended a special Gang Qi body protection secret technique 'Imperial Flow Overbearing Body'."
"You have gained a piece of information: 'The Yomi Country Lord Izanami is the supreme being...'"