His only sibling is Shiba Miyuki. 27 mai 2019 · Looking for information on the manga Mahouka Koukou no Rettousei: Shiba Tatsuya Ansatsu Keikaku (The Irregular at Magic High School: Plan to Assassinate Tatsuya Shiba)? Find out more with MyAnimeList, the world's most active online anime and manga community and database. The manga features a new heroine named Yuki Hashibami, a magician assassin.