A Saintess born through divine prophecy, granted the powers of the gods, is called the "Holy Maiden". She delivers divine blessings and words of love, healing both body and soul with sacred power. "From birth until death." That’s how it was supposed to be. And yet, despite being a Holy Maiden, she turned to black magic. She offered living sacrifices, used forbidden knowledge, and performed a demon summoning ritual. And then — a real demon actually appeared?! She made just one wish to the demon: “I want to live in a safe, peaceful place where no one knows me, with plenty of comfort and quiet.” In response, the demon brought her to the Demon Realm a place where no one knows he, just as promised and offered to let her live in his own luxurious and quiet castle. But… the castle wasn’t empty. It was filled with the demon’s family members, all powerful demons themselves. And now they say they’ll decide by majority vote whether she can stay in their castle…?!