After all, once the identity of Ghost Soul is discovered by Demonic Cultivators, it would be challenging for Ghost Soul to withdraw from the influence of diabolism.
By then, He Song would also lose a powerful Nascent Soul Puppet.
However, it is only from Master Han Yuezi that He Song learned of this method.
It's uncertain whether this method won't cause any harm to the Nascent Soul Puppet refined by He Song.
Therefore, in order not to let Ghost Soul completely lose the identity of a Demonic Cultivator after being transformed by He Song,
He Song chose to act cautiously.
He first let Qing Feng and Xianyun give it a try.
After confirming that this method did no harm to these puppets,
He then proceeded to transform Ghost Soul, as well as Mingyue who returned later.
This approach turned out to be more prudent than transforming Ghost Soul right from the start.
After all, the first one transformed by He Song was actually Xianyun.
