In true student-teacher fic fashion, Emilia is the new student; she's brilliant but she struggles to bond with her classmates because of this. Shingen is her anatomy teacher, an eccentric man that the students aren't quite sure about; naturally, Emilia is drawn to him from the beginning. A Durarara!! high school AU in which I use Shingen and Emilia's canon age gap to my advantage. NSFW, Emilia is 17 for some part of this fic, but does turn 18.