Cain must subjugate some bandits in order to advance to rank A in the guild. His handling of the quest makes his senior adventurers worry that he doesn't fit in at the academy, so they come up with a plan to help.
Oh, so that's why he called you his maestras.
لهذا نادكما بمُعلّمتيه إذاً
Aha, darum nennt er euch Lehrerinnen.
Ah, claro, por eso las llama profesoras.
Ah, claro, por eso os llama profesoras.
Oh, ecco perché vi chiama così.
Ah, por isso ele te chama de professora.
А, так вот почему он вас 
учительницами назвал.