Kara no Kyoukai 6: Boukyaku Rokuon
劇場版 空の境界 the Garden of sinners 第六章『忘却録音』
January 1999: Apprentice mage Azaka Kokutou, Mikiya's younger sister, has been ordered by her mentor, Touko Aozaki, to investigate a certain incident in which fairies steal the memories of students at Azaka's school, Reien Academy. Azaka launches an investigation with the help of Shiki.