W-well, I mean, if ghouls and humans were going to peacefully coexist, there'd have to be at least one human and one ghoul, right? From my world, I mean.

[He's talking just a little too fast, and he makes a couple of largely meaningless gestures with his hands as he does so.]

For a human to live peacefully here, there'd just have to be no ghouls, and for a ghoul to live peacefully, he or she'd just have to keep being a ghoul a secret.