I feel like a fool for sleeping on this show for so long. Most isekais are trash to be honest but this is elite level isekai. Belongs up there with Re:Zero, Jobless Reincarnation, Slime, The Devil is a Part Timer, Escaflowne, The Familiar of Zero, No Game No Life, and My Next Live as a Villainess.
This dude looking at her like WTF she's like 6 years old conducting advanced conversations and negotiations with adults. She's doing stuff there's no explanation for. She's the child of a commoner who technically couldn't read or write and can't explain how she knows anything she knows.