Having worked much too hard, Mile and the others decide the Crimson Vow should cease activities for a little while. In plain terms this means... That's right, every working person's inalienable right —— a vacation! While each of the friends enjoys their time off in their own way, Mile, with her sad history as a master of spending time by herself in her previous life, goes off to savor her time off on her own, but...
Also, on an unrelated note, this episode contains swimsuits.
Reina, perhaps you should switch 
jobs from "mage" to "princess."
رينا، ربما يجدر بك أن تغيّري عملك
"من "ساحرة" إلى "أميرة
„Reina, magst du nicht deinen Beruf
von Magier zu Prinzessin ändern?“
"Reina, forse dovresti smettere di fare la maga
e diventare una principessa."
Reina, que tal trocar sua ocupação
de maga pela de princesa?
Рэйна, тебе стоит стать принцессой, 
а не обычным магом.