Theory: Miss Jeong

Miss Jeong is a cyborg
+She speaks in systemfix (or something like that)[Fixedsys, actually.]
+She seems unmoved by Mayu's kitty charm
 -Maybe she is allegic to cats?

Miss Jeong is Yog-Sothoth
+It seemed to be implied that she had some awful history
 -Awful history can take many forms. Maybe she was a cheerleader
+She is intimidating
 -You don't need super powers to do that