Still have half of chapter 8 and chapter 9 to go, but >>133677653 reached image limit.
Reminder that the author's pixiv has like 15 omake of this
> Chapter 9 was in the December issue, which comes out in November
Mangaka drew endcard for 23rd episode of Arslan
I think Yocchi decided that they were going to go in without pants and hope that no one would realize they were wearing panties instead of swimsuits, because their shirts would hide that, but then she got too embarrassed and the other girl magicked up swimsuits for them to wear.