[Karl is at least partly here as supervision, because he knows that Chihiro means well, but there are so many things that could go wrong here, and he's kind of learned to hope for the best but expect the worst.

Still, nobody's dead from slicing the watermelon (hopefully??), which is good. Less so is his vision deciding to cut out, but he simply resigns himself to waiting it out. He's staying far away from any sharp and pointy objects—aside from his halberd—and sparklers, at least.

Except then the fireworks go off, and when he's far more used to hearing explosions in battle than he is to relatively harmless bursts of colours, his instincts go into overdrive first. Swiftly rising to his feet as he tenses, he holds out his weapon, before he realizes that—oh. Right. They're setting off fireworks, aren't they?

Letting out a sigh (of relief, mainly), he lets himself relax again.]

[Thankfully, his sight returns before the end, allowing him to enjoy at least some of the display. Sitting on the ground, halberd lying by his side with one hand over it in case, he stares up at the sky. Admittedly, his period of blindness has made him a bit melancholy; more than he's already been, over the sense of loss that's permeated through him for the past while (exactly what is he forgetting?).

Absent-mindedly, more to himself than anything:]

... The sky is blue.

[Karl's powers of observation are amazing, clearly.

... But really, even after having been in Cerealia for some time, it still feels like he's in Ishgria sometimes, with its peculiar—and mostly red—skies, and his state of tension and reminiscence doesn't help matters. With that said, as desperate as he is to return, a part of him is relieved to not be there, right now. The colony, for all of its own oddness, is closer to home than the land of demons is.]