Hm I get the feeling they won’t switch back or the popular girl would refuse bc she’s more “free” this way , who knows maybe we’ll get some flash forward 15 years later or then living relatively normal lives or just move far enough away to where meeting an old classmate as an adult wouldn’t be awkward or care about a personality change
Also i'm not really fond of takoyaki (not huge on seafood to begin with) tho i feel like it'd be hard , even as a group to make a lot of takoyaki in a bulk order unless they have some like 'frozen/precooked' ones they just heat up as opposed to like some simplified thing but i've never had school events where the food was provided by the students too versus like the cooking class teacher overseeing things or so
and dang , 500 yen unless you save it up everyday for a week isn't rly enough for a full lunch, versus a snack unless school lunch/convenience store onigiri or so are dirt cheap in JP or so (Idk if it was established that her dad wasn't as well off [since her older sister is outta the house and presumably has her own job?] but it'd be easier to just leave like, a 5k yen note once a week or so versus that)
Tho, given that Sachiko knows how to do makeup and act popular or so, be amusing if she ended up more 'successful' as an idol/actress in Yuzus body with her personality or something