The world is split into three factions, monsters, neutralists, and the order. The order seeks to rid the world of monsters and flooded their peoples’ minds with anti-monster propaganda, making their people think that monsters only exist to rid the world of humans. This couldn’t be any father from the truth, and as a novice adventurer is sent to scout out and clear an old house that was rumored to be occupied by monsters, he faces one of the daughters of the demon lord. To her, he is just a scared human, to him, she is the devil herself.