The Story of the Maidservant and the Holy Maiden

Huh? An otherworld summon? Ah, so your real target is Mio after all. Then what about me? Am I her exclusive maid? Yes, I understand. An extraordinary girl and an ordinary girl summoned to another world. One is a saint, the other is a maid. I'm not saying I'm jealous, you know? I'm already used to it. We're childhood friends, after all. A story of an ordinary maid and an extraordinary saint like that.