Priestess Garai (我雷法師, Garai Hōshi?) is the Makai Priestess of Kantai and the very master that trained Rin Saezima. She's more of a teacher than a Makai Priest in her advanced age. However her knowledge, experience and wisdom are great and her students reflect that level of respect for her.
Garai is portrayed by Kazue Tsunogae (角替 和枝, Tsunogae Kazue?).