[Regenerated the world? ...yeahy, okay, he's so lost. It's at least enough to confirm one thing -]

The Tower takes people from different worlds. Sometimes, they only "save" one.

[There's a hardness in his eyes, his voice. He's no good at sympathy even when the face in front of him isn't identical to his.]

We aren't from the same world. I have no idea what "world regeneration" you're talking about.