Ah yes, let us replace the culture of this fantasy world with Japanese culture - starting with SCHOOL GIRL UNIFORMS. Please ignore how short the skirt is compared to what every other woman has worn through this series, or how such a drastic fashion change might conflict with societal norms of modesty/beauty. Sigh. I'm usually pretty tolerant of these sort of things (like food dishes/condiments being introduced, or katanas, etc), but for some reason this particular one extremely irks me today. I dunno, maybe I've just read way, way too many Isekai and I've finally hit my limit.
Oh hey, that's a lot of blood on the last page. Uhh, who let these kids fight with real swords without at least adult supervision, or armor/defensive magic, or that convenient blade-dulling magic most fantasy stories have? Edit: oh wait there was an adult there. And the wound isn't as deep as the amount of blood led me to believe. Still...