High schooler Youta Tada is attacked in the middle of class by a scarecrow-like figure and wakes in a fantasy world of castles, dragons, and two colored moons, where no man has appeared in centuries. The first person he meets is Lumi, a kind but none-too-bright paladin of the Caesar Kingdom, who helps him hide what he is. Youta soon learns that a man's touch has an overwhelming effect on the women here, and a three-legged bird named Genius, whom Lumi calls God, begins explaining why he alone was brought across.