"Brother!?!?!" It's impressive, really, the range Noctis manages in those two syllables. One part indignant growl, the other pitching up in absolute bewilderment.

He does hear the rest of what Ardyn says but he isn't really processing it, not exactly, not yet. He's too busy pacing away from Ardyn, one hand brought to his brow as though warding off a headache. Too late for that. He circles the sheet of debris in the path, moving closer to the redhead, both hands raised in a halting gesture. "Okay. You're... clearly all sorts of fucked up from the stupid brain thing. So we're on the same page here... Somnus. As in Somnus Lucis Caelum. The Founder King. My one hundred somethingth ancestor. Who... definitely can't be your brother cause you know me. There's like a couple millennia in there."