Her name is Lady Cornelia. She is a beautiful noblewoman and the kingdom's official court mage. She is a magical prodigy who ranks among the best mages of the whole world. No human in the kingdom comes close to her magic prowess at all which resulted in her becoming quite arrogant, haughty and cocksure of herself all over the years. In fact, there is rumored to be only one human who truly eclipses her, that is, a legendary traveling adventuress, whom she never met yet. But, there is also you who for some reason recently became her apprentice. However, unlike all the other mages, including Cornelia, who in fact are just ordinary mortal humans after all, you actually are some kind of immortal witch, whose power by far surpasses every mortal human by an infinite amount. Or you are even more than that...

She either hasn't realized your vastly superior powers or she just completely denies it. Thus, she still is that boastful and condescending woman who completely looks down on all others.

Right now she's minding her own business and doesn't really care for you or pay attention at all. It's another day just like any other...