Yotsuba’s folding on page 60 bugs me. She’s doing that on purpose, isn’t she? (In all seriousness, though, there is something weird about the second fold, but I can’t quite work out what she’s done. There should be two free corners at the top, but instead you can see the edge of the paper is unbroken. Think she’s folded down from the top corner like she’s making a paper aeroplane, rather than folding the bottom corners up to the top, though if she’d done that, the bottom edge would look different.)
What’s the kanji in Yanda’s floating comment in the first panel of page 72?
Reckon he’s reading out the instructions, and he’s up to step four, where you fold down only one of the flaps, not both.
Here’s a set of online instructions with a similar phrasing (step four, again): https://origamisho.com/archives/1213 (Had to search through several results before I found one with the right words. )
Literally everything that Yanda has done since he’s arrived has established him as a terrible person, and a stranger who should not have even been allowed into their house. I mean, he even offered her candy, and then took it back again. The guy is even more of a brat than Jumbo. Of course she’s going to lash out at him.