Honestly if he's been there that long taking lessons from her, surely she should have realized he's retaining everything despite the napping. Or is this special lesson his first actual exam he's taken?
There are 2 or 3 more chapter to translate if you want, the current scanlator group is very inconsistent with uploads, not that it's very important if they are or not
I don't say this very often:
This manga is actually pretty good for an isekai.
Unique concept, less cliche moments. But hell, we only have until chapter 3.1-
*sad frog noises*