Eren knew Alephee was explaining the limitations of using the demons' method of exploring worlds for his well-being. But he had a different thought running through his mind.
'Most of the problems these so-called demons have are because they choose a beast vessel for their soul fragments. But what about the other possibility that you talked about? I mean the sentient beings getting possessed by demon soul fragments...'
Alephee shook her head before replying.
'Things are not as easy as you are making them out to be. Demons' soul fragments can occupy beast vessels since they lack awareness and their souls are easy to suppress.
However, the slumbering human child's soul develops a firm consciousness as soon as it is born. Or maybe even before that. What a mortal human infant lacks in physical capacity, nature makes up for it by giving them a strong soul that cannot be easily controlled. Especially when an otherworldly existence is trying to take over them.
