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.
Huh. Reina-san is the 
happiest out of everyone.
رينا-سان هي الأسعد من بين الجميع
Y resulta que eres la más entusiasmada…
Y resulta que eres la más entusiasmada…
T’es la plus ravie d’entre nous.
Reina è la più felice di tutte.
Hm, a Reina-san é a mais feliz de todas.
Рэйна рада больше всех.