"Really?"

That does admittedly sound kinda funny though. And maybe means that it was just sheer coincidence she happened to notice him when she first arrived. Something like that, at least.

As for that last bit though... Congratulations, Jinwoo, you can enjoy seeing Ritsuka looking genuinely surprised and at a loss for words for a good second or two.

"Oh. Well..." How is she even supposed to respond to that? "I guess I can try to help, if you want to make more?"