Akashic Records of the Bastard Magical Instructor

Sistine attends a magical academy to hone her skills in Magic, and dreams of solving the mystery of the enigmatic Sky Castle. After her favorite teacher retires, the replacement, Glenn, turns out to be a tardy, lazy, incompetent bastard instructor. How is it that Glenn was hand-picked by the Academy’s best to become her teacher?!
Series Notes:
1, Anime/Manga continuation:
– V6 continues from the Anime (2017) ending
– V11 continues from the Manga ending
2, .5 volumes (Memory Records) are side-story compilations.
– The volume numbers are irrelevant, their numbers are based on their releases between the main volumes.
– All side stories are plot relevant ,you can start with any one without being spoiled.
3, Nov2017ss is supplementary to V5.5c2 extra.