If you want to fish, the premise is that you need bait, and the Heart Demon Dao Soldiers can serve as the hook. However, the Ghost Hunters are after the souls of the strong, not the strong themselves. There is a difference between the two.
As long as there is no soul born, even the most potent Ghost Hunters will ignore it.
The Heart Demon Dao Soldiers are essentially composed of Heart Demons and a series of derivatives, originating from Gu Shanhai.
So, when it comes to souls, there might be some alternative emotions, but nothing more beyond that.
Gu Shanhai cannot be certain whether the Heart Demon Dao Soldiers have souls.
There are plenty of species without souls, like intelligent machines, AI, or certain silicon-based life forms. In the myriad worlds of the multiverse, there are all kinds of oddities.
After all, there are spiritual bodies without flesh, so why can't there be flesh without a soul?
