Hearing the self hypnotizing words of Alfin, Reina just shook her head in disgust. "If you recycle a plastic toy into a bottle. Would it still be considered a plastic toy?" With these words, she closed her eyes, showing that she doesn't wish to communicate anymore. Leaving Alfin no chance to retort.
Which annoyed Alfin, a bit more than expected.
To Reina, if souls do exist then they are nothing more than material to be shaped by experience. Just like a plastic when processed gains different forms, so does the soul, hence there are next to none who retains memories of their past. Because that doesn't matter to begin with.
A person dies when their memories are gone, it's the ultimate truth and the ultimate death. And those that deal with their fear of death by thinking of the afterlife?