Blue Archive The Animation Episode 11 English Subbed Episode Title: Because She is my Student Episode Description: Sensei has a meeting with Black Suit face to face. Black Suit reveals just like Sensei, he isn't from Kivotos and is part of an organization called Gematria, who research and discover the secrets of Kivotos. Black Suit invites Sensei to join Gematria but he refuses as he wants to save Hoshino as she is still his student since he never signed and approved her withdrawal letter. Despite his confusion on why Sensei cares about the students, Black Suit gives up and tells Sensei that Hoshino is being held at the Kaiser PMC base...