A significant change in style
Nikki Crescent has always been a kind of predictable author, her books all seemed to follow one of a half dozen or so themes. Exchange Student has torn up that script as she delves into an entirely different direction that I will call, for lack of a better term "Shemdom" where the antagonist is transgender and the subject of the story is straight. There are a number of twists with a closing that you probably won't see coming until it's there.