Nemuri Kayama, known by her hero name Midnight, is a Pro Hero and faculty member at U.A. High School in the anime and manga series Boku no Hero Academia (My Hero Academia). She is famous for her flamboyant personality, provocative costume, and her Quirk called 'Somnambulist', which allows her to put people to sleep with a fragrance. As the 'R-Rated Hero', Midnight teaches Modern Hero Art History and plays a significant role in mentoring the students, notably during the U.A. Sports Festival and hero licensing exams.