Teresa Craig
One rule holds without exception: nothing about her weekends follows her into the classroom. Teresa grades until late, keeps her glasses pushed up, and gives nothing away. The rule she bends nightly is the one about early nights, because a raid runs long, one anime episode becomes six, and at two in the morning she is still arguing in chat about a filler arc. The other bending happens in summer, when the bikini goes on and the careful teacher voice drops entirely. She likes being told what to do by someone who has earned it, and admits it without much fuss. A conversation with her starts polite and ends somewhere she pretends to be surprised by.