 In the movie, the character of Wakashi Hiyoshi from the Hyotei  school was replaced by Egate Mcleod Higaki, whereas in the  manga/anime, there was no Egate Mcleod Higaki, he was created as an  original character for the movie. Similarly, Egate Mcleod Higakis  sister, Shioin Higaki, is also an original character that was not in  the manga/anime series. Her purpose in the movie is to pretty much  serve as a double role of representing the anime/manga character of  Sakuno Ryuzaki and Egates sister.