A priest little brother loses his sanity from the demon lord's curse and gets aroused toward his elder sister so that he gropes her butts, as the nun elder sister is as defenseless as other nuns often kissing her little brother without a second

Machine translation Our protagonist, Chise is a student in a magic academy. She visits a rural area with a cave accompanied by her elder brother (can be renamed) for her graduation examination. "It's gonna be a piece of cake because you've already