[That's a surprisingly poignant answer...and if he's being honest, Yu can't argue with that reasoning.]

I think I understand.

[A pause. He watches the smoke as it dissipates into the air, feeling a sudden wave of...nostalgia, maybe. Arriving here means he missed a lot of summertime traditions at home -- hanabi festivals being one of them. So it's kind of nice, seeing the fireworks...even if it's a little late in the year.]

... People have used fireworks in my world for thousands of years. It's sort of comforting to find that other worlds use them, too.