Yeah, I thought that was a little quick to wear one.
Is there ever a scene in any kind of romantic manga where someone says fireworks are beautiful, while the other agrees and looks at the first character? Not counting where the MC is just too dense for that.
Japanese non-public "fireworks" will never not be funny to me. Not that I think everyone should traumatise all wildlife and literally pulverise hundreds, but seeing sparklers just reminds me of young children and they (sparklers) really aren't that great. I'd argue even candles are more impactful