[He's quiet for a moment. It sounds like Louis went through something truly hellish. Was this the fate of his Earth? Or another timeline? There are things that sound familiar and line up, but also don't at the same time. He's quiet as he thinks it through]

Hmm...that sounds awful...

[And yet even while hearing about such a horrified event, he still approaches it calmly. Seal Knights be like that. Investigating calamities are their norm.]

...If I had to guess, I'd say you're from an alternate timeline of Earth from mine. The Soul Devices I mentioned earlier is our Earth's way of combating such threats. If ours was the same Earth, I can't imagine they wouldn't be tried before changing people into Revenants...